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Diffstat (limited to 'fs/udf/inode.c')
-rw-r--r--fs/udf/inode.c1245
1 files changed, 550 insertions, 695 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index bf7de0bdbab3..1652b2c665bb 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -49,19 +49,20 @@ MODULE_LICENSE("GPL");
static mode_t udf_convert_permissions(struct fileEntry *);
static int udf_update_inode(struct inode *, int);
static void udf_fill_inode(struct inode *, struct buffer_head *);
+static int udf_alloc_i_data(struct inode *inode, size_t size);
static struct buffer_head *inode_getblk(struct inode *, sector_t, int *,
- long *, int *);
+ long *, int *);
static int8_t udf_insert_aext(struct inode *, struct extent_position,
- kernel_lb_addr, uint32_t);
+ kernel_lb_addr, uint32_t);
static void udf_split_extents(struct inode *, int *, int, int,
- kernel_long_ad [EXTENT_MERGE_SIZE], int *);
+ kernel_long_ad[EXTENT_MERGE_SIZE], int *);
static void udf_prealloc_extents(struct inode *, int, int,
- kernel_long_ad [EXTENT_MERGE_SIZE], int *);
+ kernel_long_ad[EXTENT_MERGE_SIZE], int *);
static void udf_merge_extents(struct inode *,
- kernel_long_ad [EXTENT_MERGE_SIZE], int *);
+ kernel_long_ad[EXTENT_MERGE_SIZE], int *);
static void udf_update_extents(struct inode *,
- kernel_long_ad [EXTENT_MERGE_SIZE], int, int,
- struct extent_position *);
+ kernel_long_ad[EXTENT_MERGE_SIZE], int, int,
+ struct extent_position *);
static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
/*
@@ -80,7 +81,7 @@ static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
*
* Called at the last iput() if i_nlink is zero.
*/
-void udf_delete_inode(struct inode * inode)
+void udf_delete_inode(struct inode *inode)
{
truncate_inode_pages(&inode->i_data, 0);
@@ -96,6 +97,7 @@ void udf_delete_inode(struct inode * inode)
unlock_kernel();
return;
+
no_delete:
clear_inode(inode);
}
@@ -131,26 +133,27 @@ static int udf_readpage(struct file *file, struct page *page)
return block_read_full_page(page, udf_get_block);
}
-static int udf_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+static int udf_prepare_write(struct file *file, struct page *page,
+ unsigned from, unsigned to)
{
return block_prepare_write(page, from, to, udf_get_block);
}
static sector_t udf_bmap(struct address_space *mapping, sector_t block)
{
- return generic_block_bmap(mapping,block,udf_get_block);
+ return generic_block_bmap(mapping, block, udf_get_block);
}
const struct address_space_operations udf_aops = {
- .readpage = udf_readpage,
- .writepage = udf_writepage,
- .sync_page = block_sync_page,
- .prepare_write = udf_prepare_write,
- .commit_write = generic_commit_write,
- .bmap = udf_bmap,
+ .readpage = udf_readpage,
+ .writepage = udf_writepage,
+ .sync_page = block_sync_page,
+ .prepare_write = udf_prepare_write,
+ .commit_write = generic_commit_write,
+ .bmap = udf_bmap,
};
-void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err)
+void udf_expand_file_adinicb(struct inode *inode, int newsize, int *err)
{
struct page *page;
char *kaddr;
@@ -162,8 +165,7 @@ void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err)
/* from now on we have normal address_space methods */
inode->i_data.a_ops = &udf_aops;
- if (!UDF_I_LENALLOC(inode))
- {
+ if (!UDF_I_LENALLOC(inode)) {
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
else
@@ -175,19 +177,18 @@ void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err)
page = grab_cache_page(inode->i_mapping, 0);
BUG_ON(!PageLocked(page));
- if (!PageUptodate(page))
- {
+ if (!PageUptodate(page)) {
kaddr = kmap(page);
memset(kaddr + UDF_I_LENALLOC(inode), 0x00,
- PAGE_CACHE_SIZE - UDF_I_LENALLOC(inode));
+ PAGE_CACHE_SIZE - UDF_I_LENALLOC(inode));
memcpy(kaddr, UDF_I_DATA(inode) + UDF_I_LENEATTR(inode),
- UDF_I_LENALLOC(inode));
+ UDF_I_LENALLOC(inode));
flush_dcache_page(page);
SetPageUptodate(page);
kunmap(page);
}
memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0x00,
- UDF_I_LENALLOC(inode));
+ UDF_I_LENALLOC(inode));
UDF_I_LENALLOC(inode) = 0;
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
@@ -200,7 +201,8 @@ void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err)
mark_inode_dirty(inode);
}
-struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int *err)
+struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
+ int *err)
{
int newblock;
struct buffer_head *dbh = NULL;
@@ -219,8 +221,7 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int
else
alloctype = ICBTAG_FLAG_AD_LONG;
- if (!inode->i_size)
- {
+ if (!inode->i_size) {
UDF_I_ALLOCTYPE(inode) = alloctype;
mark_inode_dirty(inode);
return NULL;
@@ -228,13 +229,12 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int
/* alloc block, and copy data to it */
*block = udf_new_block(inode->i_sb, inode,
- UDF_I_LOCATION(inode).partitionReferenceNum,
- UDF_I_LOCATION(inode).logicalBlockNum, err);
-
+ UDF_I_LOCATION(inode).partitionReferenceNum,
+ UDF_I_LOCATION(inode).logicalBlockNum, err);
if (!(*block))
return NULL;
newblock = udf_get_pblock(inode->i_sb, *block,
- UDF_I_LOCATION(inode).partitionReferenceNum, 0);
+ UDF_I_LOCATION(inode).partitionReferenceNum, 0);
if (!newblock)
return NULL;
dbh = udf_tgetblk(inode->i_sb, newblock);
@@ -250,12 +250,10 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int
sfibh.sbh = sfibh.ebh = NULL;
dfibh.soffset = dfibh.eoffset = 0;
dfibh.sbh = dfibh.ebh = dbh;
- while ( (f_pos < size) )
- {
+ while ((f_pos < size)) {
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL, NULL, NULL, NULL);
- if (!sfi)
- {
+ if (!sfi) {
brelse(dbh);
return NULL;
}
@@ -265,8 +263,7 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int
dfibh.eoffset += (sfibh.eoffset - sfibh.soffset);
dfi = (struct fileIdentDesc *)(dbh->b_data + dfibh.soffset);
if (udf_write_fi(inode, sfi, dfi, &dfibh, sfi->impUse,
- sfi->fileIdent + le16_to_cpu(sfi->lengthOfImpUse)))
- {
+ sfi->fileIdent + le16_to_cpu(sfi->lengthOfImpUse))) {
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
brelse(dbh);
return NULL;
@@ -291,14 +288,14 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int
return dbh;
}
-static int udf_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create)
+static int udf_get_block(struct inode *inode, sector_t block,
+ struct buffer_head *bh_result, int create)
{
int err, new;
struct buffer_head *bh;
unsigned long phys;
- if (!create)
- {
+ if (!create) {
phys = udf_block_map(inode, block);
if (phys)
map_bh(bh_result, inode->i_sb, phys);
@@ -314,10 +311,9 @@ static int udf_get_block(struct inode *inode, sector_t block, struct buffer_head
if (block < 0)
goto abort_negative;
- if (block == UDF_I_NEXT_ALLOC_BLOCK(inode) + 1)
- {
- UDF_I_NEXT_ALLOC_BLOCK(inode) ++;
- UDF_I_NEXT_ALLOC_GOAL(inode) ++;
+ if (block == UDF_I_NEXT_ALLOC_BLOCK(inode) + 1) {
+ UDF_I_NEXT_ALLOC_BLOCK(inode)++;
+ UDF_I_NEXT_ALLOC_GOAL(inode)++;
}
err = 0;
@@ -331,6 +327,7 @@ static int udf_get_block(struct inode *inode, sector_t block, struct buffer_head
if (new)
set_buffer_new(bh_result);
map_bh(bh_result, inode->i_sb, phys);
+
abort:
unlock_kernel();
return err;
@@ -340,20 +337,18 @@ abort_negative:
goto abort;
}
-static struct buffer_head *
-udf_getblk(struct inode *inode, long block, int create, int *err)
+static struct buffer_head *udf_getblk(struct inode *inode, long block,
+ int create, int *err)
{
+ struct buffer_head *bh;
struct buffer_head dummy;
dummy.b_state = 0;
dummy.b_blocknr = -1000;
*err = udf_get_block(inode, block, &dummy, create);
- if (!*err && buffer_mapped(&dummy))
- {
- struct buffer_head *bh;
+ if (!*err && buffer_mapped(&dummy)) {
bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
- if (buffer_new(&dummy))
- {
+ if (buffer_new(&dummy)) {
lock_buffer(bh);
memset(bh->b_data, 0x00, inode->i_sb->s_blocksize);
set_buffer_uptodate(bh);
@@ -362,33 +357,36 @@ udf_getblk(struct inode *inode, long block, int create, int *err)
}
return bh;
}
+
return NULL;
}
/* Extend the file by 'blocks' blocks, return the number of extents added */
int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
- kernel_long_ad *last_ext, sector_t blocks)
+ kernel_long_ad * last_ext, sector_t blocks)
{
sector_t add;
int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
struct super_block *sb = inode->i_sb;
- kernel_lb_addr prealloc_loc = {0, 0};
+ kernel_lb_addr prealloc_loc = {};
int prealloc_len = 0;
/* The previous extent is fake and we should not extend by anything
* - there's nothing to do... */
if (!blocks && fake)
return 0;
+
/* Round the last extent up to a multiple of block size */
if (last_ext->extLength & (sb->s_blocksize - 1)) {
last_ext->extLength =
(last_ext->extLength & UDF_EXTENT_FLAG_MASK) |
(((last_ext->extLength & UDF_EXTENT_LENGTH_MASK) +
- sb->s_blocksize - 1) & ~(sb->s_blocksize - 1));
+ sb->s_blocksize - 1) & ~(sb->s_blocksize - 1));
UDF_I_LENEXTENTS(inode) =
(UDF_I_LENEXTENTS(inode) + sb->s_blocksize - 1) &
- ~(sb->s_blocksize - 1);
+ ~(sb->s_blocksize - 1);
}
+
/* Last extent are just preallocated blocks? */
if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_ALLOCATED) {
/* Save the extent so that we can reattach it to the end */
@@ -400,10 +398,11 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
last_ext->extLocation.logicalBlockNum = 0;
last_ext->extLocation.partitionReferenceNum = 0;
}
+
/* Can we merge with the previous extent? */
if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_NOT_ALLOCATED) {
- add = ((1<<30) - sb->s_blocksize - (last_ext->extLength &
- UDF_EXTENT_LENGTH_MASK)) >> sb->s_blocksize_bits;
+ add = ((1 << 30) - sb->s_blocksize - (last_ext->extLength &
+ UDF_EXTENT_LENGTH_MASK)) >> sb->s_blocksize_bits;
if (add > blocks)
add = blocks;
blocks -= add;
@@ -412,11 +411,12 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
if (fake) {
udf_add_aext(inode, last_pos, last_ext->extLocation,
- last_ext->extLength, 1);
+ last_ext->extLength, 1);
count++;
- }
- else
+ } else {
udf_write_aext(inode, last_pos, last_ext->extLocation, last_ext->extLength, 1);
+ }
+
/* Managed to do everything necessary? */
if (!blocks)
goto out;
@@ -426,11 +426,12 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
last_ext->extLocation.partitionReferenceNum = 0;
add = (1 << (30-sb->s_blocksize_bits)) - 1;
last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | (add << sb->s_blocksize_bits);
+
/* Create enough extents to cover the whole hole */
while (blocks > add) {
blocks -= add;
if (udf_add_aext(inode, last_pos, last_ext->extLocation,
- last_ext->extLength, 1) == -1)
+ last_ext->extLength, 1) == -1)
return -1;
count++;
}
@@ -438,10 +439,11 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
(blocks << sb->s_blocksize_bits);
if (udf_add_aext(inode, last_pos, last_ext->extLocation,
- last_ext->extLength, 1) == -1)
+ last_ext->extLength, 1) == -1)
return -1;
count++;
}
+
out:
/* Do we have some preallocated blocks saved? */
if (prealloc_len) {
@@ -451,6 +453,7 @@ out:
last_ext->extLength = prealloc_len;
count++;
}
+
/* last_pos should point to the last written extent... */
if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
last_pos->offset -= sizeof(short_ad);
@@ -458,11 +461,12 @@ out:
last_pos->offset -= sizeof(long_ad);
else
return -1;
+
return count;
}
-static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
- int *err, long *phys, int *new)
+static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
+ int *err, long *phys, int *new)
{
static sector_t last_block;
struct buffer_head *result = NULL;
@@ -486,18 +490,15 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
b_off = (loff_t)block << inode->i_sb->s_blocksize_bits;
/* find the extent which contains the block we are looking for.
- alternate between laarr[0] and laarr[1] for locations of the
- current extent, and the previous extent */
- do
- {
- if (prev_epos.bh != cur_epos.bh)
- {
+ alternate between laarr[0] and laarr[1] for locations of the
+ current extent, and the previous extent */
+ do {
+ if (prev_epos.bh != cur_epos.bh) {
brelse(prev_epos.bh);
get_bh(cur_epos.bh);
prev_epos.bh = cur_epos.bh;
}
- if (cur_epos.bh != next_epos.bh)
- {
+ if (cur_epos.bh != next_epos.bh) {
brelse(cur_epos.bh);
get_bh(next_epos.bh);
cur_epos.bh = next_epos.bh;
@@ -522,9 +523,9 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
if (etype != (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
pgoal = eloc.logicalBlockNum +
((elen + inode->i_sb->s_blocksize - 1) >>
- inode->i_sb->s_blocksize_bits);
+ inode->i_sb->s_blocksize_bits);
- count ++;
+ count++;
} while (lbcount + elen <= b_off);
b_off -= lbcount;
@@ -537,15 +538,13 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
udf_next_aext(inode, &cur_epos, &tmpeloc, &tmpelen, 0);
/* if the extent is allocated and recorded, return the block
- if the extent is not a multiple of the blocksize, round up */
+ if the extent is not a multiple of the blocksize, round up */
- if (etype == (EXT_RECORDED_ALLOCATED >> 30))
- {
- if (elen & (inode->i_sb->s_blocksize - 1))
- {
+ if (etype == (EXT_RECORDED_ALLOCATED >> 30)) {
+ if (elen & (inode->i_sb->s_blocksize - 1)) {
elen = EXT_RECORDED_ALLOCATED |
((elen + inode->i_sb->s_blocksize - 1) &
- ~(inode->i_sb->s_blocksize - 1));
+ ~(inode->i_sb->s_blocksize - 1));
etype = udf_write_aext(inode, &cur_epos, eloc, elen, 1);
}
brelse(prev_epos.bh);
@@ -558,16 +557,14 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
last_block = block;
/* Are we beyond EOF? */
- if (etype == -1)
- {
+ if (etype == -1) {
int ret;
if (count) {
if (c)
laarr[0] = laarr[1];
startnum = 1;
- }
- else {
+ } else {
/* Create a fake extent when there's not one */
memset(&laarr[0].extLocation, 0x00, sizeof(kernel_lb_addr));
laarr[0].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED;
@@ -597,18 +594,16 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
laarr[c].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
inode->i_sb->s_blocksize;
memset(&laarr[c].extLocation, 0x00, sizeof(kernel_lb_addr));
- count ++;
- endnum ++;
+ count++;
+ endnum++;
}
- endnum = c+1;
+ endnum = c + 1;
lastblock = 1;
- }
- else {
+ } else {
endnum = startnum = ((count > 2) ? 2 : count);
/* if the current extent is in position 0, swap it with the previous */
- if (!c && count != 1)
- {
+ if (!c && count != 1) {
laarr[2] = laarr[0];
laarr[0] = laarr[1];
laarr[1] = laarr[2];
@@ -616,37 +611,33 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
}
/* if the current block is located in an extent, read the next extent */
- if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 0)) != -1)
- {
- laarr[c+1].extLength = (etype << 30) | elen;
- laarr[c+1].extLocation = eloc;
- count ++;
- startnum ++;
- endnum ++;
- }
- else {
+ if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 0)) != -1) {
+ laarr[c + 1].extLength = (etype << 30) | elen;
+ laarr[c + 1].extLocation = eloc;
+ count++;
+ startnum++;
+ endnum++;
+ } else {
lastblock = 1;
}
}
/* if the current extent is not recorded but allocated, get the
- block in the extent corresponding to the requested block */
- if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
+ * block in the extent corresponding to the requested block */
+ if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
newblocknum = laarr[c].extLocation.logicalBlockNum + offset;
- else /* otherwise, allocate a new block */
- {
+ } else { /* otherwise, allocate a new block */
if (UDF_I_NEXT_ALLOC_BLOCK(inode) == block)
goal = UDF_I_NEXT_ALLOC_GOAL(inode);
- if (!goal)
- {
+ if (!goal) {
if (!(goal = pgoal))
goal = UDF_I_LOCATION(inode).logicalBlockNum + 1;
}
if (!(newblocknum = udf_new_block(inode->i_sb, inode,
- UDF_I_LOCATION(inode).partitionReferenceNum, goal, err)))
- {
+ UDF_I_LOCATION(inode).partitionReferenceNum,
+ goal, err))) {
brelse(prev_epos.bh);
*err = -ENOSPC;
return NULL;
@@ -655,8 +646,8 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
}
/* if the extent the requsted block is located in contains multiple blocks,
- split the extent into at most three extents. blocks prior to requested
- block, requested block, and blocks after requested block */
+ * split the extent into at most three extents. blocks prior to requested
+ * block, requested block, and blocks after requested block */
udf_split_extents(inode, &c, offset, newblocknum, laarr, &endnum);
#ifdef UDF_PREALLOCATE
@@ -668,15 +659,14 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
udf_merge_extents(inode, laarr, &endnum);
/* write back the new extents, inserting new extents if the new number
- of extents is greater than the old number, and deleting extents if
- the new number of extents is less than the old number */
+ * of extents is greater than the old number, and deleting extents if
+ * the new number of extents is less than the old number */
udf_update_extents(inode, laarr, startnum, endnum, &prev_epos);
brelse(prev_epos.bh);
if (!(newblock = udf_get_pblock(inode->i_sb, newblocknum,
- UDF_I_LOCATION(inode).partitionReferenceNum, 0)))
- {
+ UDF_I_LOCATION(inode).partitionReferenceNum, 0))) {
return NULL;
}
*phys = newblock;
@@ -690,156 +680,139 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block,
udf_sync_inode(inode);
else
mark_inode_dirty(inode);
+
return result;
}
-static void udf_split_extents(struct inode *inode, int *c, int offset, int newblocknum,
- kernel_long_ad laarr[EXTENT_MERGE_SIZE], int *endnum)
+static void udf_split_extents(struct inode *inode, int *c, int offset,
+ int newblocknum,
+ kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+ int *endnum)
{
if ((laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30) ||
- (laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
- {
+ (laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
int curr = *c;
int blen = ((laarr[curr].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
int8_t etype = (laarr[curr].extLength >> 30);
- if (blen == 1)
+ if (blen == 1) {
;
- else if (!offset || blen == offset + 1)
- {
- laarr[curr+2] = laarr[curr+1];
- laarr[curr+1] = laarr[curr];
- }
- else
- {
- laarr[curr+3] = laarr[curr+1];
- laarr[curr+2] = laarr[curr+1] = laarr[curr];
+ } else if (!offset || blen == offset + 1) {
+ laarr[curr + 2] = laarr[curr + 1];
+ laarr[curr + 1] = laarr[curr];
+ } else {
+ laarr[curr + 3] = laarr[curr + 1];
+ laarr[curr + 2] = laarr[curr + 1] = laarr[curr];
}
- if (offset)
- {
- if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
- {
+ if (offset) {
+ if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
udf_free_blocks(inode->i_sb, inode, laarr[curr].extLocation, 0, offset);
laarr[curr].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
(offset << inode->i_sb->s_blocksize_bits);
laarr[curr].extLocation.logicalBlockNum = 0;
laarr[curr].extLocation.partitionReferenceNum = 0;
- }
- else
+ } else {
laarr[curr].extLength = (etype << 30) |
(offset << inode->i_sb->s_blocksize_bits);
- curr ++;
- (*c) ++;
- (*endnum) ++;
+ }
+ curr++;
+ (*c)++;
+ (*endnum)++;
}
-
+
laarr[curr].extLocation.logicalBlockNum = newblocknum;
if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
laarr[curr].extLocation.partitionReferenceNum =
UDF_I_LOCATION(inode).partitionReferenceNum;
laarr[curr].extLength = EXT_RECORDED_ALLOCATED |
inode->i_sb->s_blocksize;
- curr ++;
+ curr++;
- if (blen != offset + 1)
- {
+ if (blen != offset + 1) {
if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
laarr[curr].extLocation.logicalBlockNum += (offset + 1);
laarr[curr].extLength = (etype << 30) |
((blen - (offset + 1)) << inode->i_sb->s_blocksize_bits);
- curr ++;
- (*endnum) ++;
+ curr++;
+ (*endnum)++;
}
}
}
static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
- kernel_long_ad laarr[EXTENT_MERGE_SIZE], int *endnum)
+ kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+ int *endnum)
{
int start, length = 0, currlength = 0, i;
- if (*endnum >= (c+1))
- {
+ if (*endnum >= (c + 1)) {
if (!lastblock)
return;
else
start = c;
- }
- else
- {
- if ((laarr[c+1].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
- {
- start = c+1;
- length = currlength = (((laarr[c+1].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
- }
- else
+ } else {
+ if ((laarr[c + 1].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
+ start = c + 1;
+ length = currlength = (((laarr[c + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+ } else {
start = c;
+ }
}
- for (i=start+1; i<=*endnum; i++)
- {
- if (i == *endnum)
- {
+ for (i = start + 1; i <= *endnum; i++) {
+ if (i == *endnum) {
if (lastblock)
length += UDF_DEFAULT_PREALLOC_BLOCKS;
- }
- else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+ } else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
length += (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
- else
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+ } else {
break;
+ }
}
- if (length)
- {
+ if (length) {
int next = laarr[start].extLocation.logicalBlockNum +
(((laarr[start].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
int numalloc = udf_prealloc_blocks(inode->i_sb, inode,
- laarr[start].extLocation.partitionReferenceNum,
- next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ? length :
- UDF_DEFAULT_PREALLOC_BLOCKS) - currlength);
-
- if (numalloc)
- {
- if (start == (c+1))
+ laarr[start].extLocation.partitionReferenceNum,
+ next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ? length :
+ UDF_DEFAULT_PREALLOC_BLOCKS) - currlength);
+ if (numalloc) {
+ if (start == (c + 1)) {
laarr[start].extLength +=
(numalloc << inode->i_sb->s_blocksize_bits);
- else
- {
- memmove(&laarr[c+2], &laarr[c+1],
- sizeof(long_ad) * (*endnum - (c+1)));
- (*endnum) ++;
- laarr[c+1].extLocation.logicalBlockNum = next;
- laarr[c+1].extLocation.partitionReferenceNum =
+ } else {
+ memmove(&laarr[c + 2], &laarr[c + 1],
+ sizeof(long_ad) * (*endnum - (c + 1)));
+ (*endnum)++;
+ laarr[c + 1].extLocation.logicalBlockNum = next;
+ laarr[c + 1].extLocation.partitionReferenceNum =
laarr[c].extLocation.partitionReferenceNum;
- laarr[c+1].extLength = EXT_NOT_RECORDED_ALLOCATED |
+ laarr[c + 1].extLength = EXT_NOT_RECORDED_ALLOCATED |
(numalloc << inode->i_sb->s_blocksize_bits);
- start = c+1;
+ start = c + 1;
}
- for (i=start+1; numalloc && i<*endnum; i++)
- {
+ for (i = start + 1; numalloc && i < *endnum; i++) {
int elen = ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
- if (elen > numalloc)
- {
+ if (elen > numalloc) {
laarr[i].extLength -=
(numalloc << inode->i_sb->s_blocksize_bits);
numalloc = 0;
- }
- else
- {
+ } else {
numalloc -= elen;
- if (*endnum > (i+1))
- memmove(&laarr[i], &laarr[i+1],
- sizeof(long_ad) * (*endnum - (i+1)));
- i --;
- (*endnum) --;
+ if (*endnum > (i + 1))
+ memmove(&laarr[i], &laarr[i + 1],
+ sizeof(long_ad) * (*endnum - (i + 1)));
+ i--;
+ (*endnum)--;
}
}
UDF_I_LENEXTENTS(inode) += numalloc << inode->i_sb->s_blocksize_bits;
@@ -848,82 +821,70 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
}
static void udf_merge_extents(struct inode *inode,
- kernel_long_ad laarr[EXTENT_MERGE_SIZE], int *endnum)
+ kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+ int *endnum)
{
int i;
- for (i=0; i<(*endnum-1); i++)
- {
- if ((laarr[i].extLength >> 30) == (laarr[i+1].extLength >> 30))
- {
+ for (i = 0; i < (*endnum - 1); i++) {
+ if ((laarr[i].extLength >> 30) == (laarr[i + 1].extLength >> 30)) {
if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) ||
- ((laarr[i+1].extLocation.logicalBlockNum - laarr[i].extLocation.logicalBlockNum) ==
- (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits)))
- {
+ ((laarr[i + 1].extLocation.logicalBlockNum - laarr[i].extLocation.logicalBlockNum) ==
+ (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits))) {
if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- (laarr[i+1].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK)
- {
- laarr[i+1].extLength = (laarr[i+1].extLength -
- (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize-1);
+ (laarr[i + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
+ inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
+ laarr[i + 1].extLength = (laarr[i + 1].extLength -
+ (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+ UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize - 1);
laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) +
(UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize;
- laarr[i+1].extLocation.logicalBlockNum =
+ laarr[i + 1].extLocation.logicalBlockNum =
laarr[i].extLocation.logicalBlockNum +
((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) >>
- inode->i_sb->s_blocksize_bits);
- }
- else
- {
- laarr[i].extLength = laarr[i+1].extLength +
+ inode->i_sb->s_blocksize_bits);
+ } else {
+ laarr[i].extLength = laarr[i + 1].extLength +
(((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize-1));
- if (*endnum > (i+2))
- memmove(&laarr[i+1], &laarr[i+2],
- sizeof(long_ad) * (*endnum - (i+2)));
- i --;
- (*endnum) --;
+ inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize - 1));
+ if (*endnum > (i + 2))
+ memmove(&laarr[i + 1], &laarr[i + 2],
+ sizeof(long_ad) * (*endnum - (i + 2)));
+ i--;
+ (*endnum)--;
}
}
- }
- else if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) &&
- ((laarr[i+1].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)))
- {
+ } else if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) &&
+ ((laarr[i + 1].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) {
udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0,
- ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+ ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
laarr[i].extLocation.logicalBlockNum = 0;
laarr[i].extLocation.partitionReferenceNum = 0;
if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- (laarr[i+1].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK)
- {
- laarr[i+1].extLength = (laarr[i+1].extLength -
- (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize-1);
+ (laarr[i + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
+ inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
+ laarr[i + 1].extLength = (laarr[i + 1].extLength -
+ (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+ UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize - 1);
laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) +
(UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize;
- }
- else
- {
- laarr[i].extLength = laarr[i+1].extLength +
+ } else {
+ laarr[i].extLength = laarr[i + 1].extLength +
(((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize-1));
- if (*endnum > (i+2))
- memmove(&laarr[i+1], &laarr[i+2],
- sizeof(long_ad) * (*endnum - (i+2)));
- i --;
- (*endnum) --;
+ inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize - 1));
+ if (*endnum > (i + 2))
+ memmove(&laarr[i + 1], &laarr[i + 2],
+ sizeof(long_ad) * (*endnum - (i + 2)));
+ i--;
+ (*endnum)--;
}
- }
- else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
- {
+ } else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0,
- ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
- inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+ ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+ inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
laarr[i].extLocation.logicalBlockNum = 0;
laarr[i].extLocation.partitionReferenceNum = 0;
laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) |
@@ -933,43 +894,39 @@ static void udf_merge_extents(struct inode *inode,
}
static void udf_update_extents(struct inode *inode,
- kernel_long_ad laarr[EXTENT_MERGE_SIZE], int startnum, int endnum,
- struct extent_position *epos)
+ kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+ int startnum, int endnum,
+ struct extent_position *epos)
{
int start = 0, i;
kernel_lb_addr tmploc;
uint32_t tmplen;
- if (startnum > endnum)
- {
- for (i=0; i<(startnum-endnum); i++)
+ if (startnum > endnum) {
+ for (i = 0; i < (startnum - endnum); i++)
udf_delete_aext(inode, *epos, laarr[i].extLocation,
- laarr[i].extLength);
- }
- else if (startnum < endnum)
- {
- for (i=0; i<(endnum-startnum); i++)
- {
+ laarr[i].extLength);
+ } else if (startnum < endnum) {
+ for (i = 0; i < (endnum - startnum); i++) {
udf_insert_aext(inode, *epos, laarr[i].extLocation,
- laarr[i].extLength);
+ laarr[i].extLength);
udf_next_aext(inode, epos, &laarr[i].extLocation,
- &laarr[i].extLength, 1);
- start ++;
+ &laarr[i].extLength, 1);
+ start++;
}
}
- for (i=start; i<endnum; i++)
- {
+ for (i = start; i < endnum; i++) {
udf_next_aext(inode, epos, &tmploc, &tmplen, 0);
udf_write_aext(inode, epos, laarr[i].extLocation,
- laarr[i].extLength, 1);
+ laarr[i].extLength, 1);
}
}
-struct buffer_head * udf_bread(struct inode * inode, int block,
- int create, int * err)
+struct buffer_head *udf_bread(struct inode *inode, int block,
+ int create, int *err)
{
- struct buffer_head * bh = NULL;
+ struct buffer_head *bh = NULL;
bh = udf_getblk(inode, block, create, err);
if (!bh)
@@ -977,65 +934,61 @@ struct buffer_head * udf_bread(struct inode * inode, int block,
if (buffer_uptodate(bh))
return bh;
+
ll_rw_block(READ, 1, &bh);
+
wait_on_buffer(bh);
if (buffer_uptodate(bh))
return bh;
+
brelse(bh);
*err = -EIO;
return NULL;
}
-void udf_truncate(struct inode * inode)
+void udf_truncate(struct inode *inode)
{
int offset;
int err;
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
- S_ISLNK(inode->i_mode)))
+ S_ISLNK(inode->i_mode)))
return;
if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
return;
lock_kernel();
- if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
- {
+ if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
- inode->i_size))
- {
+ inode->i_size)) {
udf_expand_file_adinicb(inode, inode->i_size, &err);
- if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
- {
+ if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
inode->i_size = UDF_I_LENALLOC(inode);
unlock_kernel();
return;
- }
- else
+ } else {
udf_truncate_extents(inode);
- }
- else
- {
+ }
+ } else {
offset = inode->i_size & (inode->i_sb->s_blocksize - 1);
- memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset, 0x00, inode->i_sb->s_blocksize - offset - udf_file_entry_alloc_offset(inode));
+ memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset, 0x00,
+ inode->i_sb->s_blocksize - offset - udf_file_entry_alloc_offset(inode));
UDF_I_LENALLOC(inode) = inode->i_size;
}
- }
- else
- {
+ } else {
block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block);
udf_truncate_extents(inode);
- }
+ }
inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb);
if (IS_SYNC(inode))
- udf_sync_inode (inode);
+ udf_sync_inode(inode);
else
mark_inode_dirty(inode);
unlock_kernel();
}
-static void
-__udf_read_inode(struct inode *inode)
+static void __udf_read_inode(struct inode *inode)
{
struct buffer_head *bh = NULL;
struct fileEntry *fe;
@@ -1054,20 +1007,17 @@ __udf_read_inode(struct inode *inode)
* i_op = NULL;
*/
bh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 0, &ident);
-
- if (!bh)
- {
+ if (!bh) {
printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed !bh\n",
- inode->i_ino);
+ inode->i_ino);
make_bad_inode(inode);
return;
}
if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
- ident != TAG_IDENT_USE)
- {
+ ident != TAG_IDENT_USE) {
printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed ident=%d\n",
- inode->i_ino, ident);
+ inode->i_ino, ident);
brelse(bh);
make_bad_inode(inode);
return;
@@ -1075,51 +1025,43 @@ __udf_read_inode(struct inode *inode)
fe = (struct fileEntry *)bh->b_data;
- if (le16_to_cpu(fe->icbTag.strategyType) == 4096)
- {
+ if (le16_to_cpu(fe->icbTag.strategyType) == 4096) {
struct buffer_head *ibh = NULL, *nbh = NULL;
struct indirectEntry *ie;
ibh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 1, &ident);
- if (ident == TAG_IDENT_IE)
- {
- if (ibh)
- {
+ if (ident == TAG_IDENT_IE) {
+ if (ibh) {
kernel_lb_addr loc;
ie = (struct indirectEntry *)ibh->b_data;
-
+
loc = lelb_to_cpu(ie->indirectICB.extLocation);
-
- if (ie->indirectICB.extLength &&
- (nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident)))
- {
+
+ if (ie->indirectICB.extLength &&
+ (nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident))) {
if (ident == TAG_IDENT_FE ||
- ident == TAG_IDENT_EFE)
- {
- memcpy(&UDF_I_LOCATION(inode), &loc, sizeof(kernel_lb_addr));
+ ident == TAG_IDENT_EFE) {
+ memcpy(&UDF_I_LOCATION(inode), &loc,
+ sizeof(kernel_lb_addr));
brelse(bh);
brelse(ibh);
brelse(nbh);
__udf_read_inode(inode);
return;
- }
- else
- {
+ } else {
brelse(nbh);
brelse(ibh);
}
- }
- else
+ } else {
brelse(ibh);
+ }
}
- }
- else
+ } else {
brelse(ibh);
- }
- else if (le16_to_cpu(fe->icbTag.strategyType) != 4)
- {
+ }
+ } else if (le16_to_cpu(fe->icbTag.strategyType) != 4) {
printk(KERN_ERR "udf: unsupported strategy type: %d\n",
- le16_to_cpu(fe->icbTag.strategyType));
+ le16_to_cpu(fe->icbTag.strategyType));
brelse(bh);
make_bad_inode(inode);
return;
@@ -1152,87 +1094,85 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
UDF_I_LENALLOC(inode) = 0;
UDF_I_NEXT_ALLOC_BLOCK(inode) = 0;
UDF_I_NEXT_ALLOC_GOAL(inode) = 0;
- if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_EFE)
- {
+ if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_EFE) {
UDF_I_EFE(inode) = 1;
UDF_I_USE(inode) = 0;
- UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL);
- memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry), inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
- }
- else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE)
- {
+ if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry))) {
+ make_bad_inode(inode);
+ return;
+ }
+ memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry),
+ inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
+ } else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE) {
UDF_I_EFE(inode) = 0;
UDF_I_USE(inode) = 0;
- UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL);
- memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry), inode->i_sb->s_blocksize - sizeof(struct fileEntry));
- }
- else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE)
- {
+ if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct fileEntry))) {
+ make_bad_inode(inode);
+ return;
+ }
+ memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry),
+ inode->i_sb->s_blocksize - sizeof(struct fileEntry));
+ } else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) {
UDF_I_EFE(inode) = 0;
UDF_I_USE(inode) = 1;
UDF_I_LENALLOC(inode) =
- le32_to_cpu(
- ((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs);
- UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry), GFP_KERNEL);
- memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry), inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
+ le32_to_cpu(((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs);
+ if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry))) {
+ make_bad_inode(inode);
+ return;
+ }
+ memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry),
+ inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
return;
}
inode->i_uid = le32_to_cpu(fe->uid);
- if (inode->i_uid == -1 || UDF_QUERY_FLAG(inode->i_sb,
- UDF_FLAG_UID_IGNORE))
+ if (inode->i_uid == -1 ||
+ UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_IGNORE) ||
+ UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_SET))
inode->i_uid = UDF_SB(inode->i_sb)->s_uid;
inode->i_gid = le32_to_cpu(fe->gid);
- if (inode->i_gid == -1 || UDF_QUERY_FLAG(inode->i_sb,
- UDF_FLAG_GID_IGNORE))
+ if (inode->i_gid == -1 ||
+ UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_IGNORE) ||
+ UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_SET))
inode->i_gid = UDF_SB(inode->i_sb)->s_gid;
inode->i_nlink = le16_to_cpu(fe->fileLinkCount);
if (!inode->i_nlink)
inode->i_nlink = 1;
-
+
inode->i_size = le64_to_cpu(fe->informationLength);
UDF_I_LENEXTENTS(inode) = inode->i_size;
inode->i_mode = udf_convert_permissions(fe);
inode->i_mode &= ~UDF_SB(inode->i_sb)->s_umask;
- if (UDF_I_EFE(inode) == 0)
- {
+ if (UDF_I_EFE(inode) == 0) {
inode->i_blocks = le64_to_cpu(fe->logicalBlocksRecorded) <<
(inode->i_sb->s_blocksize_bits - 9);
- if ( udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(fe->accessTime)) )
- {
+ if (udf_stamp_to_time(&convtime, &convtime_usec,
+ lets_to_cpu(fe->accessTime))) {
inode->i_atime.tv_sec = convtime;
inode->i_atime.tv_nsec = convtime_usec * 1000;
- }
- else
- {
+ } else {
inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb);
}
- if ( udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(fe->modificationTime)) )
- {
+ if (udf_stamp_to_time(&convtime, &convtime_usec,
+ lets_to_cpu(fe->modificationTime))) {
inode->i_mtime.tv_sec = convtime;
inode->i_mtime.tv_nsec = convtime_usec * 1000;
- }
- else
- {
+ } else {
inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb);
}
- if ( udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(fe->attrTime)) )
- {
+ if (udf_stamp_to_time(&convtime, &convtime_usec,
+ lets_to_cpu(fe->attrTime))) {
inode->i_ctime.tv_sec = convtime;
inode->i_ctime.tv_nsec = convtime_usec * 1000;
- }
- else
- {
+ } else {
inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb);
}
@@ -1240,53 +1180,39 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
UDF_I_LENEATTR(inode) = le32_to_cpu(fe->lengthExtendedAttr);
UDF_I_LENALLOC(inode) = le32_to_cpu(fe->lengthAllocDescs);
offset = sizeof(struct fileEntry) + UDF_I_LENEATTR(inode);
- }
- else
- {
- inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
- (inode->i_sb->s_blocksize_bits - 9);
+ } else {
+ inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
+ (inode->i_sb->s_blocksize_bits - 9);
- if ( udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->accessTime)) )
- {
+ if (udf_stamp_to_time(&convtime, &convtime_usec,
+ lets_to_cpu(efe->accessTime))) {
inode->i_atime.tv_sec = convtime;
inode->i_atime.tv_nsec = convtime_usec * 1000;
- }
- else
- {
+ } else {
inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb);
}
- if ( udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->modificationTime)) )
- {
+ if (udf_stamp_to_time(&convtime, &convtime_usec,
+ lets_to_cpu(efe->modificationTime))) {
inode->i_mtime.tv_sec = convtime;
inode->i_mtime.tv_nsec = convtime_usec * 1000;
- }
- else
- {
+ } else {
inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb);
}
- if ( udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->createTime)) )
- {
+ if (udf_stamp_to_time(&convtime, &convtime_usec,
+ lets_to_cpu(efe->createTime))) {
UDF_I_CRTIME(inode).tv_sec = convtime;
UDF_I_CRTIME(inode).tv_nsec = convtime_usec * 1000;
- }
- else
- {
+ } else {
UDF_I_CRTIME(inode) = UDF_SB_RECORDTIME(inode->i_sb);
}
- if ( udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->attrTime)) )
- {
+ if (udf_stamp_to_time(&convtime, &convtime_usec,
+ lets_to_cpu(efe->attrTime))) {
inode->i_ctime.tv_sec = convtime;
inode->i_ctime.tv_nsec = convtime_usec * 1000;
- }
- else
- {
+ } else {
inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb);
}
@@ -1296,86 +1222,74 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
offset = sizeof(struct extendedFileEntry) + UDF_I_LENEATTR(inode);
}
- switch (fe->icbTag.fileType)
- {
- case ICBTAG_FILE_TYPE_DIRECTORY:
- {
- inode->i_op = &udf_dir_inode_operations;
- inode->i_fop = &udf_dir_operations;
- inode->i_mode |= S_IFDIR;
- inc_nlink(inode);
- break;
- }
- case ICBTAG_FILE_TYPE_REALTIME:
- case ICBTAG_FILE_TYPE_REGULAR:
- case ICBTAG_FILE_TYPE_UNDEF:
- {
- if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
- inode->i_data.a_ops = &udf_adinicb_aops;
- else
- inode->i_data.a_ops = &udf_aops;
- inode->i_op = &udf_file_inode_operations;
- inode->i_fop = &udf_file_operations;
- inode->i_mode |= S_IFREG;
- break;
- }
- case ICBTAG_FILE_TYPE_BLOCK:
- {
- inode->i_mode |= S_IFBLK;
- break;
- }
- case ICBTAG_FILE_TYPE_CHAR:
- {
- inode->i_mode |= S_IFCHR;
- break;
- }
- case ICBTAG_FILE_TYPE_FIFO:
- {
- init_special_inode(inode, inode->i_mode | S_IFIFO, 0);
- break;
- }
- case ICBTAG_FILE_TYPE_SOCKET:
- {
- init_special_inode(inode, inode->i_mode | S_IFSOCK, 0);
- break;
- }
- case ICBTAG_FILE_TYPE_SYMLINK:
- {
- inode->i_data.a_ops = &udf_symlink_aops;
- inode->i_op = &page_symlink_inode_operations;
- inode->i_mode = S_IFLNK|S_IRWXUGO;
- break;
- }
- default:
- {
- printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown file type=%d\n",
- inode->i_ino, fe->icbTag.fileType);
- make_bad_inode(inode);
- return;
- }
+ switch (fe->icbTag.fileType) {
+ case ICBTAG_FILE_TYPE_DIRECTORY:
+ inode->i_op = &udf_dir_inode_operations;
+ inode->i_fop = &udf_dir_operations;
+ inode->i_mode |= S_IFDIR;
+ inc_nlink(inode);
+ break;
+ case ICBTAG_FILE_TYPE_REALTIME:
+ case ICBTAG_FILE_TYPE_REGULAR:
+ case ICBTAG_FILE_TYPE_UNDEF:
+ if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+ inode->i_data.a_ops = &udf_adinicb_aops;
+ else
+ inode->i_data.a_ops = &udf_aops;
+ inode->i_op = &udf_file_inode_operations;
+ inode->i_fop = &udf_file_operations;
+ inode->i_mode |= S_IFREG;
+ break;
+ case ICBTAG_FILE_TYPE_BLOCK:
+ inode->i_mode |= S_IFBLK;
+ break;
+ case ICBTAG_FILE_TYPE_CHAR:
+ inode->i_mode |= S_IFCHR;
+ break;
+ case ICBTAG_FILE_TYPE_FIFO:
+ init_special_inode(inode, inode->i_mode | S_IFIFO, 0);
+ break;
+ case ICBTAG_FILE_TYPE_SOCKET:
+ init_special_inode(inode, inode->i_mode | S_IFSOCK, 0);
+ break;
+ case ICBTAG_FILE_TYPE_SYMLINK:
+ inode->i_data.a_ops = &udf_symlink_aops;
+ inode->i_op = &page_symlink_inode_operations;
+ inode->i_mode = S_IFLNK | S_IRWXUGO;
+ break;
+ default:
+ printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown file type=%d\n",
+ inode->i_ino, fe->icbTag.fileType);
+ make_bad_inode(inode);
+ return;
}
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
- {
- struct deviceSpec *dsea =
- (struct deviceSpec *)
- udf_get_extendedattr(inode, 12, 1);
-
- if (dsea)
- {
- init_special_inode(inode, inode->i_mode, MKDEV(
- le32_to_cpu(dsea->majorDeviceIdent),
- le32_to_cpu(dsea->minorDeviceIdent)));
+ if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
+ struct deviceSpec *dsea = (struct deviceSpec *)udf_get_extendedattr(inode, 12, 1);
+ if (dsea) {
+ init_special_inode(inode, inode->i_mode,
+ MKDEV(le32_to_cpu(dsea->majorDeviceIdent),
+ le32_to_cpu(dsea->minorDeviceIdent)));
/* Developer ID ??? */
- }
- else
- {
+ } else {
make_bad_inode(inode);
}
}
}
-static mode_t
-udf_convert_permissions(struct fileEntry *fe)
+static int udf_alloc_i_data(struct inode *inode, size_t size)
+{
+ UDF_I_DATA(inode) = kmalloc(size, GFP_KERNEL);
+
+ if (!UDF_I_DATA(inode)) {
+ printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) no free memory\n",
+ inode->i_ino);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static mode_t udf_convert_permissions(struct fileEntry *fe)
{
mode_t mode;
uint32_t permissions;
@@ -1409,22 +1323,23 @@ udf_convert_permissions(struct fileEntry *fe)
* Written, tested, and released.
*/
-int udf_write_inode(struct inode * inode, int sync)
+int udf_write_inode(struct inode *inode, int sync)
{
int ret;
+
lock_kernel();
ret = udf_update_inode(inode, sync);
unlock_kernel();
+
return ret;
}
-int udf_sync_inode(struct inode * inode)
+int udf_sync_inode(struct inode *inode)
{
return udf_update_inode(inode, 1);
}
-static int
-udf_update_inode(struct inode *inode, int do_sync)
+static int udf_update_inode(struct inode *inode, int do_sync)
{
struct buffer_head *bh = NULL;
struct fileEntry *fe;
@@ -1436,11 +1351,8 @@ udf_update_inode(struct inode *inode, int do_sync)
kernel_timestamp cpu_time;
int err = 0;
- bh = udf_tread(inode->i_sb,
- udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0));
-
- if (!bh)
- {
+ bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0));
+ if (!bh) {
udf_debug("bread failure\n");
return -EIO;
}
@@ -1450,23 +1362,23 @@ udf_update_inode(struct inode *inode, int do_sync)
fe = (struct fileEntry *)bh->b_data;
efe = (struct extendedFileEntry *)bh->b_data;
- if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE)
- {
+ if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) {
struct unallocSpaceEntry *use =
(struct unallocSpaceEntry *)bh->b_data;
use->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
- memcpy(bh->b_data + sizeof(struct unallocSpaceEntry), UDF_I_DATA(inode), inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
- crclen = sizeof(struct unallocSpaceEntry) + UDF_I_LENALLOC(inode) -
- sizeof(tag);
+ memcpy(bh->b_data + sizeof(struct unallocSpaceEntry), UDF_I_DATA(inode),
+ inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
+ crclen = sizeof(struct unallocSpaceEntry) + UDF_I_LENALLOC(inode) - sizeof(tag);
use->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
use->descTag.descCRCLength = cpu_to_le16(crclen);
use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use + sizeof(tag), crclen, 0));
use->descTag.tagChecksum = 0;
- for (i=0; i<16; i++)
+ for (i = 0; i < 16; i++) {
if (i != 4)
use->descTag.tagChecksum += ((uint8_t *)&(use->descTag))[i];
+ }
mark_buffer_dirty(bh);
brelse(bh);
@@ -1475,11 +1387,13 @@ udf_update_inode(struct inode *inode, int do_sync)
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_FORGET))
fe->uid = cpu_to_le32(-1);
- else fe->uid = cpu_to_le32(inode->i_uid);
+ else
+ fe->uid = cpu_to_le32(inode->i_uid);
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_FORGET))
fe->gid = cpu_to_le32(-1);
- else fe->gid = cpu_to_le32(inode->i_gid);
+ else
+ fe->gid = cpu_to_le32(inode->i_gid);
udfperms = ((inode->i_mode & S_IRWXO) ) |
((inode->i_mode & S_IRWXG) << 2) |
@@ -1498,23 +1412,19 @@ udf_update_inode(struct inode *inode, int do_sync)
fe->informationLength = cpu_to_le64(inode->i_size);
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
- {
+ if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
regid *eid;
struct deviceSpec *dsea =
- (struct deviceSpec *)
- udf_get_extendedattr(inode, 12, 1);
-
- if (!dsea)
- {
+ (struct deviceSpec *)udf_get_extendedattr(inode, 12, 1);
+ if (!dsea) {
dsea = (struct deviceSpec *)
udf_add_extendedattr(inode,
- sizeof(struct deviceSpec) +
- sizeof(regid), 12, 0x3);
+ sizeof(struct deviceSpec) +
+ sizeof(regid), 12, 0x3);
dsea->attrType = cpu_to_le32(12);
dsea->attrSubtype = 1;
dsea->attrLength = cpu_to_le32(sizeof(struct deviceSpec) +
- sizeof(regid));
+ sizeof(regid));
dsea->impUseLength = cpu_to_le32(sizeof(regid));
}
eid = (regid *)dsea->impUse;
@@ -1526,9 +1436,9 @@ udf_update_inode(struct inode *inode, int do_sync)
dsea->minorDeviceIdent = cpu_to_le32(iminor(inode));
}
- if (UDF_I_EFE(inode) == 0)
- {
- memcpy(bh->b_data + sizeof(struct fileEntry), UDF_I_DATA(inode), inode->i_sb->s_blocksize - sizeof(struct fileEntry));
+ if (UDF_I_EFE(inode) == 0) {
+ memcpy(bh->b_data + sizeof(struct fileEntry), UDF_I_DATA(inode),
+ inode->i_sb->s_blocksize - sizeof(struct fileEntry));
fe->logicalBlocksRecorded = cpu_to_le64(
(inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
(inode->i_sb->s_blocksize_bits - 9));
@@ -1548,31 +1458,27 @@ udf_update_inode(struct inode *inode, int do_sync)
fe->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
fe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_FE);
crclen = sizeof(struct fileEntry);
- }
- else
- {
- memcpy(bh->b_data + sizeof(struct extendedFileEntry), UDF_I_DATA(inode), inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
+ } else {
+ memcpy(bh->b_data + sizeof(struct extendedFileEntry), UDF_I_DATA(inode),
+ inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
efe->objectSize = cpu_to_le64(inode->i_size);
efe->logicalBlocksRecorded = cpu_to_le64(
(inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
(inode->i_sb->s_blocksize_bits - 9));
if (UDF_I_CRTIME(inode).tv_sec > inode->i_atime.tv_sec ||
- (UDF_I_CRTIME(inode).tv_sec == inode->i_atime.tv_sec &&
- UDF_I_CRTIME(inode).tv_nsec > inode->i_atime.tv_nsec))
- {
+ (UDF_I_CRTIME(inode).tv_sec == inode->i_atime.tv_sec &&
+ UDF_I_CRTIME(inode).tv_nsec > inode->i_atime.tv_nsec)) {
UDF_I_CRTIME(inode) = inode->i_atime;
}
if (UDF_I_CRTIME(inode).tv_sec > inode->i_mtime.tv_sec ||
- (UDF_I_CRTIME(inode).tv_sec == inode->i_mtime.tv_sec &&
- UDF_I_CRTIME(inode).tv_nsec > inode->i_mtime.tv_nsec))
- {
+ (UDF_I_CRTIME(inode).tv_sec == inode->i_mtime.tv_sec &&
+ UDF_I_CRTIME(inode).tv_nsec > inode->i_mtime.tv_nsec)) {
UDF_I_CRTIME(inode) = inode->i_mtime;
}
if (UDF_I_CRTIME(inode).tv_sec > inode->i_ctime.tv_sec ||
- (UDF_I_CRTIME(inode).tv_sec == inode->i_ctime.tv_sec &&
- UDF_I_CRTIME(inode).tv_nsec > inode->i_ctime.tv_nsec))
- {
+ (UDF_I_CRTIME(inode).tv_sec == inode->i_ctime.tv_sec &&
+ UDF_I_CRTIME(inode).tv_nsec > inode->i_ctime.tv_nsec)) {
UDF_I_CRTIME(inode) = inode->i_ctime;
}
@@ -1595,14 +1501,11 @@ udf_update_inode(struct inode *inode, int do_sync)
efe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EFE);
crclen = sizeof(struct extendedFileEntry);
}
- if (UDF_I_STRAT4096(inode))
- {
+ if (UDF_I_STRAT4096(inode)) {
fe->icbTag.strategyType = cpu_to_le16(4096);
fe->icbTag.strategyParameter = cpu_to_le16(1);
fe->icbTag.numEntries = cpu_to_le16(2);
- }
- else
- {
+ } else {
fe->icbTag.strategyType = cpu_to_le16(4);
fe->icbTag.numEntries = cpu_to_le16(1);
}
@@ -1642,28 +1545,27 @@ udf_update_inode(struct inode *inode, int do_sync)
fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag), crclen, 0));
fe->descTag.tagChecksum = 0;
- for (i=0; i<16; i++)
+ for (i = 0; i < 16; i++) {
if (i != 4)
fe->descTag.tagChecksum += ((uint8_t *)&(fe->descTag))[i];
+ }
/* write the data blocks */
mark_buffer_dirty(bh);
- if (do_sync)
- {
+ if (do_sync) {
sync_dirty_buffer(bh);
- if (buffer_req(bh) && !buffer_uptodate(bh))
- {
+ if (buffer_req(bh) && !buffer_uptodate(bh)) {
printk("IO error syncing udf inode [%s:%08lx]\n",
- inode->i_sb->s_id, inode->i_ino);
+ inode->i_sb->s_id, inode->i_ino);
err = -EIO;
}
}
brelse(bh);
+
return err;
}
-struct inode *
-udf_iget(struct super_block *sb, kernel_lb_addr ino)
+struct inode *udf_iget(struct super_block *sb, kernel_lb_addr ino)
{
unsigned long block = udf_get_lb_pblock(sb, ino, 0);
struct inode *inode = iget_locked(sb, block);
@@ -1682,7 +1584,7 @@ udf_iget(struct super_block *sb, kernel_lb_addr ino)
if (ino.logicalBlockNum >= UDF_SB_PARTLEN(sb, ino.partitionReferenceNum)) {
udf_debug("block=%d, partition=%d out of range\n",
- ino.logicalBlockNum, ino.partitionReferenceNum);
+ ino.logicalBlockNum, ino.partitionReferenceNum);
make_bad_inode(inode);
goto out_iput;
}
@@ -1694,8 +1596,8 @@ udf_iget(struct super_block *sb, kernel_lb_addr ino)
return NULL;
}
-int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
- kernel_lb_addr eloc, uint32_t elen, int inc)
+int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
+ kernel_lb_addr eloc, uint32_t elen, int inc)
{
int adsize;
short_ad *sad = NULL;
@@ -1716,21 +1618,19 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
else
return -1;
- if (epos->offset + (2 * adsize) > inode->i_sb->s_blocksize)
- {
+ if (epos->offset + (2 * adsize) > inode->i_sb->s_blocksize) {
char *sptr, *dptr;
struct buffer_head *nbh;
int err, loffset;
kernel_lb_addr obloc = epos->block;
if (!(epos->block.logicalBlockNum = udf_new_block(inode->i_sb, NULL,
- obloc.partitionReferenceNum, obloc.logicalBlockNum, &err)))
- {
+ obloc.partitionReferenceNum,
+ obloc.logicalBlockNum, &err))) {
return -1;
}
if (!(nbh = udf_tgetblk(inode->i_sb, udf_get_lb_pblock(inode->i_sb,
- epos->block, 0))))
- {
+ epos->block, 0)))) {
return -1;
}
lock_buffer(nbh);
@@ -1742,85 +1642,69 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
aed = (struct allocExtDesc *)(nbh->b_data);
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT))
aed->previousAllocExtLocation = cpu_to_le32(obloc.logicalBlockNum);
- if (epos->offset + adsize > inode->i_sb->s_blocksize)
- {
+ if (epos->offset + adsize > inode->i_sb->s_blocksize) {
loffset = epos->offset;
aed->lengthAllocDescs = cpu_to_le32(adsize);
sptr = ptr - adsize;
dptr = nbh->b_data + sizeof(struct allocExtDesc);
memcpy(dptr, sptr, adsize);
epos->offset = sizeof(struct allocExtDesc) + adsize;
- }
- else
- {
+ } else {
loffset = epos->offset + adsize;
aed->lengthAllocDescs = cpu_to_le32(0);
sptr = ptr;
epos->offset = sizeof(struct allocExtDesc);
- if (epos->bh)
- {
+ if (epos->bh) {
aed = (struct allocExtDesc *)epos->bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
- }
- else
- {
+ } else {
UDF_I_LENALLOC(inode) += adsize;
mark_inode_dirty(inode);
}
}
if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200)
udf_new_tag(nbh->b_data, TAG_IDENT_AED, 3, 1,
- epos->block.logicalBlockNum, sizeof(tag));
+ epos->block.logicalBlockNum, sizeof(tag));
else
udf_new_tag(nbh->b_data, TAG_IDENT_AED, 2, 1,
- epos->block.logicalBlockNum, sizeof(tag));
- switch (UDF_I_ALLOCTYPE(inode))
- {
- case ICBTAG_FLAG_AD_SHORT:
- {
- sad = (short_ad *)sptr;
- sad->extLength = cpu_to_le32(
- EXT_NEXT_EXTENT_ALLOCDECS |
- inode->i_sb->s_blocksize);
- sad->extPosition = cpu_to_le32(epos->block.logicalBlockNum);
- break;
- }
- case ICBTAG_FLAG_AD_LONG:
- {
- lad = (long_ad *)sptr;
- lad->extLength = cpu_to_le32(
- EXT_NEXT_EXTENT_ALLOCDECS |
- inode->i_sb->s_blocksize);
- lad->extLocation = cpu_to_lelb(epos->block);
- memset(lad->impUse, 0x00, sizeof(lad->impUse));
- break;
- }
+ epos->block.logicalBlockNum, sizeof(tag));
+ switch (UDF_I_ALLOCTYPE(inode)) {
+ case ICBTAG_FLAG_AD_SHORT:
+ sad = (short_ad *)sptr;
+ sad->extLength = cpu_to_le32(EXT_NEXT_EXTENT_ALLOCDECS |
+ inode->i_sb->s_blocksize);
+ sad->extPosition = cpu_to_le32(epos->block.logicalBlockNum);
+ break;
+ case ICBTAG_FLAG_AD_LONG:
+ lad = (long_ad *)sptr;
+ lad->extLength = cpu_to_le32(EXT_NEXT_EXTENT_ALLOCDECS |
+ inode->i_sb->s_blocksize);
+ lad->extLocation = cpu_to_lelb(epos->block);
+ memset(lad->impUse, 0x00, sizeof(lad->impUse));
+ break;
}
- if (epos->bh)
- {
- if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+ if (epos->bh) {
+ if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
+ UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
udf_update_tag(epos->bh->b_data, loffset);
else
udf_update_tag(epos->bh->b_data, sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(epos->bh, inode);
brelse(epos->bh);
- }
- else
+ } else {
mark_inode_dirty(inode);
+ }
epos->bh = nbh;
}
etype = udf_write_aext(inode, epos, eloc, elen, inc);
- if (!epos->bh)
- {
+ if (!epos->bh) {
UDF_I_LENALLOC(inode) += adsize;
mark_inode_dirty(inode);
- }
- else
- {
+ } else {
aed = (struct allocExtDesc *)epos->bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
@@ -1834,73 +1718,68 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
return etype;
}
-int8_t udf_write_aext(struct inode *inode, struct extent_position *epos,
- kernel_lb_addr eloc, uint32_t elen, int inc)
+int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
+ kernel_lb_addr eloc, uint32_t elen, int inc)
{
int adsize;
uint8_t *ptr;
+ short_ad *sad;
+ long_ad *lad;
if (!epos->bh)
ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
else
ptr = epos->bh->b_data + epos->offset;
- switch (UDF_I_ALLOCTYPE(inode))
- {
- case ICBTAG_FLAG_AD_SHORT:
- {
- short_ad *sad = (short_ad *)ptr;
- sad->extLength = cpu_to_le32(elen);
- sad->extPosition = cpu_to_le32(eloc.logicalBlockNum);
- adsize = sizeof(short_ad);
- break;
- }
- case ICBTAG_FLAG_AD_LONG:
- {
- long_ad *lad = (long_ad *)ptr;
- lad->extLength = cpu_to_le32(elen);
- lad->extLocation = cpu_to_lelb(eloc);
- memset(lad->impUse, 0x00, sizeof(lad->impUse));
- adsize = sizeof(long_ad);
- break;
- }
- default:
- return -1;
+ switch (UDF_I_ALLOCTYPE(inode)) {
+ case ICBTAG_FLAG_AD_SHORT:
+ sad = (short_ad *)ptr;
+ sad->extLength = cpu_to_le32(elen);
+ sad->extPosition = cpu_to_le32(eloc.logicalBlockNum);
+ adsize = sizeof(short_ad);
+ break;
+ case ICBTAG_FLAG_AD_LONG:
+ lad = (long_ad *)ptr;
+ lad->extLength = cpu_to_le32(elen);
+ lad->extLocation = cpu_to_lelb(eloc);
+ memset(lad->impUse, 0x00, sizeof(lad->impUse));
+ adsize = sizeof(long_ad);
+ break;
+ default:
+ return -1;
}
- if (epos->bh)
- {
- if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
- {
+ if (epos->bh) {
+ if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
+ UDF_SB_UDFREV(inode->i_sb) >= 0x0201) {
struct allocExtDesc *aed = (struct allocExtDesc *)epos->bh->b_data;
udf_update_tag(epos->bh->b_data,
- le32_to_cpu(aed->lengthAllocDescs) + sizeof(struct allocExtDesc));
+ le32_to_cpu(aed->lengthAllocDescs) + sizeof(struct allocExtDesc));
}
mark_buffer_dirty_inode(epos->bh, inode);
- }
- else
+ } else {
mark_inode_dirty(inode);
+ }
if (inc)
epos->offset += adsize;
+
return (elen >> 30);
}
-int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
- kernel_lb_addr *eloc, uint32_t *elen, int inc)
+int8_t udf_next_aext(struct inode * inode, struct extent_position * epos,
+ kernel_lb_addr * eloc, uint32_t * elen, int inc)
{
int8_t etype;
while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) ==
- (EXT_NEXT_EXTENT_ALLOCDECS >> 30))
- {
+ (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
epos->block = *eloc;
epos->offset = sizeof(struct allocExtDesc);
brelse(epos->bh);
- if (!(epos->bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, epos->block, 0))))
- {
+ if (!(epos->bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, epos->block, 0)))) {
udf_debug("reading block %d failed!\n",
- udf_get_lb_pblock(inode->i_sb, epos->block, 0));
+ udf_get_lb_pblock(inode->i_sb, epos->block, 0));
return -1;
}
}
@@ -1908,68 +1787,55 @@ int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
return etype;
}
-int8_t udf_current_aext(struct inode *inode, struct extent_position *epos,
- kernel_lb_addr *eloc, uint32_t *elen, int inc)
+int8_t udf_current_aext(struct inode * inode, struct extent_position * epos,
+ kernel_lb_addr * eloc, uint32_t * elen, int inc)
{
int alen;
int8_t etype;
uint8_t *ptr;
+ short_ad *sad;
+ long_ad *lad;
- if (!epos->bh)
- {
+
+ if (!epos->bh) {
if (!epos->offset)
epos->offset = udf_file_entry_alloc_offset(inode);
ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
alen = udf_file_entry_alloc_offset(inode) + UDF_I_LENALLOC(inode);
- }
- else
- {
+ } else {
if (!epos->offset)
epos->offset = sizeof(struct allocExtDesc);
ptr = epos->bh->b_data + epos->offset;
- alen = sizeof(struct allocExtDesc) + le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->lengthAllocDescs);
+ alen = sizeof(struct allocExtDesc) +
+ le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->lengthAllocDescs);
}
- switch (UDF_I_ALLOCTYPE(inode))
- {
- case ICBTAG_FLAG_AD_SHORT:
- {
- short_ad *sad;
-
- if (!(sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc)))
- return -1;
-
- etype = le32_to_cpu(sad->extLength) >> 30;
- eloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
- eloc->partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
- *elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK;
- break;
- }
- case ICBTAG_FLAG_AD_LONG:
- {
- long_ad *lad;
-
- if (!(lad = udf_get_filelongad(ptr, alen, &epos->offset, inc)))
- return -1;
-
- etype = le32_to_cpu(lad->extLength) >> 30;
- *eloc = lelb_to_cpu(lad->extLocation);
- *elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
- break;
- }
- default:
- {
- udf_debug("alloc_type = %d unsupported\n", UDF_I_ALLOCTYPE(inode));
+ switch (UDF_I_ALLOCTYPE(inode)) {
+ case ICBTAG_FLAG_AD_SHORT:
+ if (!(sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc)))
return -1;
- }
+ etype = le32_to_cpu(sad->extLength) >> 30;
+ eloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
+ eloc->partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+ *elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK;
+ break;
+ case ICBTAG_FLAG_AD_LONG:
+ if (!(lad = udf_get_filelongad(ptr, alen, &epos->offset, inc)))
+ return -1;
+ etype = le32_to_cpu(lad->extLength) >> 30;
+ *eloc = lelb_to_cpu(lad->extLocation);
+ *elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
+ break;
+ default:
+ udf_debug("alloc_type = %d unsupported\n", UDF_I_ALLOCTYPE(inode));
+ return -1;
}
return etype;
}
-static int8_t
-udf_insert_aext(struct inode *inode, struct extent_position epos,
- kernel_lb_addr neloc, uint32_t nelen)
+static int8_t udf_insert_aext(struct inode *inode, struct extent_position epos,
+ kernel_lb_addr neloc, uint32_t nelen)
{
kernel_lb_addr oeloc;
uint32_t oelen;
@@ -1978,28 +1844,26 @@ udf_insert_aext(struct inode *inode, struct extent_position epos,
if (epos.bh)
get_bh(epos.bh);
- while ((etype = udf_next_aext(inode, &epos, &oeloc, &oelen, 0)) != -1)
- {
+ while ((etype = udf_next_aext(inode, &epos, &oeloc, &oelen, 0)) != -1) {
udf_write_aext(inode, &epos, neloc, nelen, 1);
-
neloc = oeloc;
nelen = (etype << 30) | oelen;
}
udf_add_aext(inode, &epos, neloc, nelen, 1);
brelse(epos.bh);
+
return (nelen >> 30);
}
-int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
- kernel_lb_addr eloc, uint32_t elen)
+int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
+ kernel_lb_addr eloc, uint32_t elen)
{
struct extent_position oepos;
int adsize;
int8_t etype;
struct allocExtDesc *aed;
- if (epos.bh)
- {
+ if (epos.bh) {
get_bh(epos.bh);
get_bh(epos.bh);
}
@@ -2015,11 +1879,9 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
if (udf_next_aext(inode, &epos, &eloc, &elen, 1) == -1)
return -1;
- while ((etype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1)
- {
+ while ((etype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) {
udf_write_aext(inode, &oepos, eloc, (etype << 30) | elen, 1);
- if (oepos.bh != epos.bh)
- {
+ if (oepos.bh != epos.bh) {
oepos.block = epos.block;
brelse(oepos.bh);
get_bh(epos.bh);
@@ -2030,62 +1892,57 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
memset(&eloc, 0x00, sizeof(kernel_lb_addr));
elen = 0;
- if (epos.bh != oepos.bh)
- {
+ if (epos.bh != oepos.bh) {
udf_free_blocks(inode->i_sb, inode, epos.block, 0, 1);
udf_write_aext(inode, &oepos, eloc, elen, 1);
udf_write_aext(inode, &oepos, eloc, elen, 1);
- if (!oepos.bh)
- {
+ if (!oepos.bh) {
UDF_I_LENALLOC(inode) -= (adsize * 2);
mark_inode_dirty(inode);
- }
- else
- {
+ } else {
aed = (struct allocExtDesc *)oepos.bh->b_data;
aed->lengthAllocDescs =
- cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - (2*adsize));
- if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
- udf_update_tag(oepos.bh->b_data, oepos.offset - (2*adsize));
+ cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - (2 * adsize));
+ if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
+ UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+ udf_update_tag(oepos.bh->b_data, oepos.offset - (2 * adsize));
else
udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(oepos.bh, inode);
}
- }
- else
- {
+ } else {
udf_write_aext(inode, &oepos, eloc, elen, 1);
- if (!oepos.bh)
- {
+ if (!oepos.bh) {
UDF_I_LENALLOC(inode) -= adsize;
mark_inode_dirty(inode);
- }
- else
- {
+ } else {
aed = (struct allocExtDesc *)oepos.bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - adsize);
- if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+ if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
+ UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
udf_update_tag(oepos.bh->b_data, epos.offset - adsize);
else
udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(oepos.bh, inode);
}
}
-
+
brelse(epos.bh);
brelse(oepos.bh);
+
return (elen >> 30);
}
-int8_t inode_bmap(struct inode *inode, sector_t block, struct extent_position *pos,
- kernel_lb_addr *eloc, uint32_t *elen, sector_t *offset)
+int8_t inode_bmap(struct inode * inode, sector_t block,
+ struct extent_position * pos, kernel_lb_addr * eloc,
+ uint32_t * elen, sector_t * offset)
{
- loff_t lbcount = 0, bcount = (loff_t)block << inode->i_sb->s_blocksize_bits;
+ loff_t lbcount = 0, bcount =
+ (loff_t) block << inode->i_sb->s_blocksize_bits;
int8_t etype;
- if (block < 0)
- {
+ if (block < 0) {
printk(KERN_ERR "udf: inode_bmap: block < 0\n");
return -1;
}
@@ -2095,10 +1952,8 @@ int8_t inode_bmap(struct inode *inode, sector_t block, struct extent_position *p
pos->bh = NULL;
*elen = 0;
- do
- {
- if ((etype = udf_next_aext(inode, pos, eloc, elen, 1)) == -1)
- {
+ do {
+ if ((etype = udf_next_aext(inode, pos, eloc, elen, 1)) == -1) {
*offset = (bcount - lbcount) >> inode->i_sb->s_blocksize_bits;
UDF_I_LENEXTENTS(inode) = lbcount;
return -1;
@@ -2116,7 +1971,7 @@ long udf_block_map(struct inode *inode, sector_t block)
kernel_lb_addr eloc;
uint32_t elen;
sector_t offset;
- struct extent_position epos = { NULL, 0, { 0, 0}};
+ struct extent_position epos = {};
int ret;
lock_kernel();
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-23 10:57:35 +0000