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-rw-r--r--fs/ext4/extents.c17
-rw-r--r--fs/ext4/file.c7
-rw-r--r--fs/ext4/inode.c4
-rw-r--r--fs/ext4/ioctl.c2
-rw-r--r--fs/ext4/mballoc.c2
-rw-r--r--fs/ext4/namei.c5
-rw-r--r--fs/ext4/resize.c1
-rw-r--r--fs/ext4/super.c60
-rw-r--r--fs/ext4/xattr.c2
9 files changed, 67 insertions, 33 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 5592b7726241..01f44364c547 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1047,6 +1047,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
__le32 border;
ext4_fsblk_t *ablocks = NULL; /* array of allocated blocks */
int err = 0;
+ size_t ext_size = 0;
/* make decision: where to split? */
/* FIXME: now decision is simplest: at current extent */
@@ -1138,6 +1139,10 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
le16_add_cpu(&neh->eh_entries, m);
}
+ /* zero out unused area in the extent block */
+ ext_size = sizeof(struct ext4_extent_header) +
+ sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries);
+ memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
ext4_extent_block_csum_set(inode, neh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
@@ -1217,6 +1222,11 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
sizeof(struct ext4_extent_idx) * m);
le16_add_cpu(&neh->eh_entries, m);
}
+ /* zero out unused area in the extent block */
+ ext_size = sizeof(struct ext4_extent_header) +
+ (sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries));
+ memset(bh->b_data + ext_size, 0,
+ inode->i_sb->s_blocksize - ext_size);
ext4_extent_block_csum_set(inode, neh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
@@ -1282,6 +1292,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
ext4_fsblk_t newblock, goal = 0;
struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
int err = 0;
+ size_t ext_size = 0;
/* Try to prepend new index to old one */
if (ext_depth(inode))
@@ -1307,9 +1318,11 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
goto out;
}
+ ext_size = sizeof(EXT4_I(inode)->i_data);
/* move top-level index/leaf into new block */
- memmove(bh->b_data, EXT4_I(inode)->i_data,
- sizeof(EXT4_I(inode)->i_data));
+ memmove(bh->b_data, EXT4_I(inode)->i_data, ext_size);
+ /* zero out unused area in the extent block */
+ memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
/* set size of new block */
neh = ext_block_hdr(bh);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 1913c69498c1..44966b272216 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -262,6 +262,13 @@ ext4_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
}
ret = __generic_file_write_iter(iocb, from);
+ /*
+ * Unaligned direct AIO must be the only IO in flight. Otherwise
+ * overlapping aligned IO after unaligned might result in data
+ * corruption.
+ */
+ if (ret == -EIOCBQUEUED && unaligned_aio)
+ ext4_unwritten_wait(inode);
inode_unlock(inode);
if (ret > 0)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 5eb28dcaa0f0..862766a1b080 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5450,7 +5450,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
up_write(&EXT4_I(inode)->i_data_sem);
ext4_journal_stop(handle);
if (error) {
- if (orphan)
+ if (orphan && inode->i_nlink)
ext4_orphan_del(NULL, inode);
goto err_out;
}
@@ -5818,7 +5818,7 @@ int ext4_expand_extra_isize(struct inode *inode,
ext4_write_lock_xattr(inode, &no_expand);
- BUFFER_TRACE(iloc.bh, "get_write_access");
+ BUFFER_TRACE(iloc->bh, "get_write_access");
error = ext4_journal_get_write_access(handle, iloc->bh);
if (error) {
brelse(iloc->bh);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 3dbf4e414706..d2efc0cb8f31 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -918,7 +918,7 @@ group_add_out:
if (err == 0)
err = err2;
mnt_drop_write_file(filp);
- if (!err && (o_group > EXT4_SB(sb)->s_groups_count) &&
+ if (!err && (o_group < EXT4_SB(sb)->s_groups_count) &&
ext4_has_group_desc_csum(sb) &&
test_opt(sb, INIT_INODE_TABLE))
err = ext4_register_li_request(sb, o_group);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 1792999eec91..3ba9a4ae4eac 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1555,7 +1555,7 @@ static int mb_find_extent(struct ext4_buddy *e4b, int block,
ex->fe_len += 1 << order;
}
- if (ex->fe_start + ex->fe_len > (1 << (e4b->bd_blkbits + 3))) {
+ if (ex->fe_start + ex->fe_len > EXT4_CLUSTERS_PER_GROUP(e4b->bd_sb)) {
/* Should never happen! (but apparently sometimes does?!?) */
WARN_ON(1);
ext4_error(e4b->bd_sb, "corruption or bug in mb_find_extent "
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 4e301b0cdfb5..070660cb5b91 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -870,12 +870,15 @@ static void dx_release(struct dx_frame *frames)
{
struct dx_root_info *info;
int i;
+ unsigned int indirect_levels;
if (frames[0].bh == NULL)
return;
info = &((struct dx_root *)frames[0].bh->b_data)->info;
- for (i = 0; i <= info->indirect_levels; i++) {
+ /* save local copy, "info" may be freed after brelse() */
+ indirect_levels = info->indirect_levels;
+ for (i = 0; i <= indirect_levels; i++) {
if (frames[i].bh == NULL)
break;
brelse(frames[i].bh);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 333fba05e1a5..4f7cd78d0364 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -849,6 +849,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
if (unlikely(err)) {
ext4_std_error(sb, err);
+ iloc.bh = NULL;
goto errout;
}
brelse(dind);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index d0049064f62f..61d07608577e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3454,6 +3454,37 @@ int ext4_calculate_overhead(struct super_block *sb)
return 0;
}
+static void ext4_clamp_want_extra_isize(struct super_block *sb)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
+
+ /* determine the minimum size of new large inodes, if present */
+ if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE &&
+ sbi->s_want_extra_isize == 0) {
+ sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
+ EXT4_GOOD_OLD_INODE_SIZE;
+ if (ext4_has_feature_extra_isize(sb)) {
+ if (sbi->s_want_extra_isize <
+ le16_to_cpu(es->s_want_extra_isize))
+ sbi->s_want_extra_isize =
+ le16_to_cpu(es->s_want_extra_isize);
+ if (sbi->s_want_extra_isize <
+ le16_to_cpu(es->s_min_extra_isize))
+ sbi->s_want_extra_isize =
+ le16_to_cpu(es->s_min_extra_isize);
+ }
+ }
+ /* Check if enough inode space is available */
+ if (EXT4_GOOD_OLD_INODE_SIZE + sbi->s_want_extra_isize >
+ sbi->s_inode_size) {
+ sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
+ EXT4_GOOD_OLD_INODE_SIZE;
+ ext4_msg(sb, KERN_INFO,
+ "required extra inode space not available");
+ }
+}
+
static void ext4_set_resv_clusters(struct super_block *sb)
{
ext4_fsblk_t resv_clusters;
@@ -4178,7 +4209,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
"data=, fs mounted w/o journal");
goto failed_mount_wq;
}
- sbi->s_def_mount_opt &= EXT4_MOUNT_JOURNAL_CHECKSUM;
+ sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM;
clear_opt(sb, JOURNAL_CHECKSUM);
clear_opt(sb, DATA_FLAGS);
sbi->s_journal = NULL;
@@ -4320,30 +4351,7 @@ no_journal:
if (ext4_setup_super(sb, es, sb_rdonly(sb)))
sb->s_flags |= MS_RDONLY;
- /* determine the minimum size of new large inodes, if present */
- if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE &&
- sbi->s_want_extra_isize == 0) {
- sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
- EXT4_GOOD_OLD_INODE_SIZE;
- if (ext4_has_feature_extra_isize(sb)) {
- if (sbi->s_want_extra_isize <
- le16_to_cpu(es->s_want_extra_isize))
- sbi->s_want_extra_isize =
- le16_to_cpu(es->s_want_extra_isize);
- if (sbi->s_want_extra_isize <
- le16_to_cpu(es->s_min_extra_isize))
- sbi->s_want_extra_isize =
- le16_to_cpu(es->s_min_extra_isize);
- }
- }
- /* Check if enough inode space is available */
- if (EXT4_GOOD_OLD_INODE_SIZE + sbi->s_want_extra_isize >
- sbi->s_inode_size) {
- sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
- EXT4_GOOD_OLD_INODE_SIZE;
- ext4_msg(sb, KERN_INFO, "required extra inode space not"
- "available");
- }
+ ext4_clamp_want_extra_isize(sb);
ext4_set_resv_clusters(sb);
@@ -5128,6 +5136,8 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
goto restore_opts;
}
+ ext4_clamp_want_extra_isize(sb);
+
if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^
test_opt(sb, JOURNAL_CHECKSUM)) {
ext4_msg(sb, KERN_ERR, "changing journal_checksum "
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 6761e905cab0..f2fde3ac8698 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1698,7 +1698,7 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
/* No failures allowed past this point. */
- if (!s->not_found && here->e_value_size && here->e_value_offs) {
+ if (!s->not_found && here->e_value_size && !here->e_value_inum) {
/* Remove the old value. */
void *first_val = s->base + min_offs;
size_t offs = le16_to_cpu(here->e_value_offs);
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-09 23:40:37 +0000