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authorGoldwyn Rodrigues <rgoldwyn@suse.com>2021-07-28 00:17:26 +0300
committerDavid Sterba <dsterba@suse.com>2021-08-23 14:19:10 +0300
commit98caf9531e1de8104b45fabbab4b6c2f290068fa (patch)
treee3f6fb43b37def2bf59908b713bddb034cec4499 /fs/btrfs/free-space-cache.c
parent0ff40a910f5649dfacc4fb5daa7e73692196342d (diff)
downloadlinux-98caf9531e1de8104b45fabbab4b6c2f290068fa.tar.xz
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.c12
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,