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authorAllison Henderson <achender@linux.vnet.ibm.com>2011-05-25 07:41:26 -0400
committerTheodore Ts'o <tytso@mit.edu>2011-05-25 07:41:26 -0400
commit55f020db66ce187fb8c8e4002a94b0eb714da450 (patch)
treee98214511542f57fa93074be12e27c4819520333 /fs/ext4/inode.c
parentae81230686282af745ebb7a74c0332349cb9131a (diff)
ext4: add flag to ext4_has_free_blocks
This patch adds an allocation request flag to the ext4_has_free_blocks function which enables the use of reserved blocks. This will allow a punch hole to proceed even if the disk is full. Punching a hole may require additional blocks to first split the extents. Because ext4_has_free_blocks is a low level function, the flag needs to be passed down through several functions listed below: ext4_ext_insert_extent ext4_ext_create_new_leaf ext4_ext_grow_indepth ext4_ext_split ext4_ext_new_meta_block ext4_mb_new_blocks ext4_claim_free_blocks ext4_has_free_blocks [ext4 punch hole patch series 1/5 v7] Signed-off-by: Allison Henderson <achender@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Mingming Cao <cmm@us.ibm.com>
Diffstat (limited to 'fs/ext4/inode.c')
-rw-r--r--fs/ext4/inode.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index d98b033dd4a4..aef864b725d3 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -639,8 +639,8 @@ static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
while (target > 0) {
count = target;
/* allocating blocks for indirect blocks and direct blocks */
- current_block = ext4_new_meta_blocks(handle, inode,
- goal, &count, err);
+ current_block = ext4_new_meta_blocks(handle, inode, goal,
+ 0, &count, err);
if (*err)
goto failed_out;
@@ -1930,7 +1930,7 @@ repeat:
* We do still charge estimated metadata to the sb though;
* we cannot afford to run out of free blocks.
*/
- if (ext4_claim_free_blocks(sbi, md_needed + 1)) {
+ if (ext4_claim_free_blocks(sbi, md_needed + 1, 0)) {
dquot_release_reservation_block(inode, 1);
if (ext4_should_retry_alloc(inode->i_sb, &retries)) {
yield();