diff options
| author | Allison Henderson <achender@linux.vnet.ibm.com> | 2011-05-25 07:41:26 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-05-25 07:41:26 -0400 |
| commit | 55f020db66ce187fb8c8e4002a94b0eb714da450 (patch) | |
| tree | e98214511542f57fa93074be12e27c4819520333 /fs/ext4/inode.c | |
| parent | ae81230686282af745ebb7a74c0332349cb9131a (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.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d98b033dd4a..aef864b725d 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(); |