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| author |   Goldwyn Rodrigues <rgoldwyn@suse.com> | 2021-07-27 16:17:26 -0500 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2021-08-23 13:19:10 +0200 |
| commit | 98caf9531e1de8104b45fabbab4b6c2f290068fa (patch) | |
| tree | e3f6fb43b37def2bf59908b713bddb034cec4499 /fs/btrfs/free-space-cache.c | |
| parent | btrfs: introduce btrfs_search_backwards function (diff) | |
| download | linux-dev-98caf9531e1de8104b45fabbab4b6c2f290068fa.tar.xz linux-dev-98caf9531e1de8104b45fabbab4b6c2f290068fa.zip | |
btrfs: allocate file_ra_state on stack in readahead_cache
Instead of allocating file_ra_state using kmalloc, allocate on stack.
sizeof(struct readahead) = 32 bytes.
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 2131ae5b9ed7..8eeb65278ac0 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -344,19 +344,13 @@ fail: static void readahead_cache(struct inode *inode) { - struct file_ra_state *ra; + struct file_ra_state ra; unsigned long last_index; - ra = kzalloc(sizeof(*ra), GFP_NOFS); - if (!ra) - return; - - file_ra_state_init(ra, inode->i_mapping); + file_ra_state_init(&ra, inode->i_mapping); last_index = (i_size_read(inode) - 1) >> PAGE_SHIFT; - page_cache_sync_readahead(inode->i_mapping, ra, NULL, 0, last_index); - - kfree(ra); + page_cache_sync_readahead(inode->i_mapping, &ra, NULL, 0, last_index); } static int io_ctl_init(struct btrfs_io_ctl *io_ctl, struct inode *inode, |