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| author | Theodore Ts'o <tytso@mit.edu> | 2013-08-16 21:23:41 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-08-16 21:23:41 -0400 |
| commit | 107a7bd31ac003e42c0f966aa8e5b26947de6024 (patch) | |
| tree | eb1484facfcba3e07b64d8775fa91fbe45591ab1 /fs/ext4/move_extent.c | |
| parent | 3be78c73179c9347bdc0a92b2898063bd2300ff7 (diff) | |
| download | linux-107a7bd31ac003e42c0f966aa8e5b26947de6024.tar.gz linux-107a7bd31ac003e42c0f966aa8e5b26947de6024.tar.bz2 linux-107a7bd31ac003e42c0f966aa8e5b26947de6024.zip | |
ext4: cache all of an extent tree's leaf block upon reading
When we read in an extent tree leaf block from disk, arrange to have
all of its entries cached. In nearly all cases the in-memory
representation will be more compact than the on-disk representation in
the buffer cache, and it allows us to get the information without
having to traverse the extent tree for successive extents.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Diffstat (limited to 'fs/ext4/move_extent.c')
| -rw-r--r-- | fs/ext4/move_extent.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c index e86dddbd8296..7fa4d855dbd5 100644 --- a/fs/ext4/move_extent.c +++ b/fs/ext4/move_extent.c @@ -37,7 +37,7 @@ get_ext_path(struct inode *inode, ext4_lblk_t lblock, int ret = 0; struct ext4_ext_path *path; - path = ext4_ext_find_extent(inode, lblock, *orig_path); + path = ext4_ext_find_extent(inode, lblock, *orig_path, EXT4_EX_NOCACHE); if (IS_ERR(path)) ret = PTR_ERR(path); else if (path[ext_depth(inode)].p_ext == NULL) |