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| author | Theodore Ts'o <tytso@mit.edu> | 2011-01-10 12:12:36 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-01-10 12:12:36 -0500 |
| commit | f232109773ff5b0c840a6761d74940b9cf0d66ec (patch) | |
| tree | a32da5ebd1a3e074e9f52107f3bdc23babb6340c /fs/ext4/mballoc.c | |
| parent | ad4fb9cafe100a4a9de6e0529015e584d94ac8dc (diff) | |
| download | lwn-f232109773ff5b0c840a6761d74940b9cf0d66ec.tar.gz lwn-f232109773ff5b0c840a6761d74940b9cf0d66ec.zip | |
ext4: replace i_delalloc_reserved_flag with EXT4_STATE_DELALLOC_RESERVED
Remove the short element i_delalloc_reserved_flag from the
ext4_inode_info structure and replace it a new bit in i_state_flags.
Since we have an ext4_inode_info for every ext4 inode cached in the
inode cache, any savings we can produce here is a very good thing from
a memory utilization perspective.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.c')
| -rw-r--r-- | fs/ext4/mballoc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 12b604abc2fe..d47a80ec231d 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -4283,7 +4283,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle, * EDQUOT check, as blocks and quotas have been already * reserved when data being copied into pagecache. */ - if (EXT4_I(ar->inode)->i_delalloc_reserved_flag) + if (ext4_test_inode_state(ar->inode, EXT4_STATE_DELALLOC_RESERVED)) ar->flags |= EXT4_MB_DELALLOC_RESERVED; else { /* Without delayed allocation we need to verify @@ -4380,7 +4380,8 @@ out: if (inquota && ar->len < inquota) dquot_free_block(ar->inode, inquota - ar->len); if (!ar->len) { - if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag) + if (!ext4_test_inode_state(ar->inode, + EXT4_STATE_DELALLOC_RESERVED)) /* release all the reserved blocks if non delalloc */ percpu_counter_sub(&sbi->s_dirtyblocks_counter, reserv_blks); |