korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-09-21 20:22:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

btrfs: use btrfs_get_fs_generation() at try_release_extent_mapping()

Browse Source 
Nowadays we have the btrfs_get_fs_generation() to get the current
generation of the filesystem, so there's no need anymore to lock the
transaction spinlock to read it.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2024-04-16 15:13:03 +01:00 committed by David Sterba
parent 078b981aaa
commit 85d288309a
1 changed files with 1 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
fs/btrfs/extent_io.c
View File

@ -2406,8 +2406,7 @@ int try_release_extent_mapping(struct page *page, gfp_t mask)
page->mapping->host->i_size > SZ_16M) {
u64 len;
while (start <= end) {
struct btrfs_fs_info *fs_info;
u64 cur_gen;
const u64 cur_gen = btrfs_get_fs_generation(inode->root->fs_info);
len = end - start + 1;
write_lock(&extent_tree->lock);
@ -2442,10 +2441,6 @@ int try_release_extent_mapping(struct page *page, gfp_t mask)
* Otherwise don't remove it, we could be racing with an
* ongoing fast fsync that could miss the new extent.
*/
fs_info = inode->root->fs_info;
spin_lock(&fs_info->trans_lock);
cur_gen = fs_info->generation;
spin_unlock(&fs_info->trans_lock);
if (em->generation >= cur_gen)
goto next;
remove_em: