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authorTheodore Ts'o <tytso@mit.edu>2013-06-12 11:48:29 -0400
committerTheodore Ts'o <tytso@mit.edu>2013-06-12 11:48:29 -0400
commit981250ca89261f98bdfd2d6be1fcccb96cbbc00d (patch)
treedc60f0b2df0b1544fe551ed415e7cefe1c3d3907 /fs/ext4/indirect.c
parent2ed5724d5a78a22864ef0bd6af4fcb8a15379f00 (diff)
downloadop-kernel-dev-981250ca89261f98bdfd2d6be1fcccb96cbbc00d.zip
op-kernel-dev-981250ca89261f98bdfd2d6be1fcccb96cbbc00d.tar.gz
ext4: don't use EXT4_FREE_BLOCKS_FORGET unnecessarily
Commit 18888cf0883c: "ext4: speed up truncate/unlink by not using bforget() unless needed" removed the use of EXT4_FREE_BLOCKS_FORGET in the most important codepath for file systems using extents, but a similar optimization also can be done for file systems using indirect blocks, and for the two special cases in the ext4 extents code. Cc: Andrey Sidorov <qrxd43@motorola.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/indirect.c')
-rw-r--r--fs/ext4/indirect.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 2a1f8a5..963d23d 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -926,11 +926,13 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode,
__le32 *last)
{
__le32 *p;
- int flags = EXT4_FREE_BLOCKS_FORGET | EXT4_FREE_BLOCKS_VALIDATED;
+ int flags = EXT4_FREE_BLOCKS_VALIDATED;
int err;
if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
- flags |= EXT4_FREE_BLOCKS_METADATA;
+ flags |= EXT4_FREE_BLOCKS_FORGET | EXT4_FREE_BLOCKS_METADATA;
+ else if (ext4_should_journal_data(inode))
+ flags |= EXT4_FREE_BLOCKS_FORGET;
if (!ext4_data_block_valid(EXT4_SB(inode->i_sb), block_to_free,
count)) {
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