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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2020-11-10 16:50:21 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-11-10 16:53:11 -0800 |
| commit | 9b8523423b23ee3dfd88e32f5b7207be56a4e782 (patch) | |
| tree | 3d9fa2079734066f508785731d118a2223e9dea3 /include | |
| parent | 8a3c84b649b033024d2349f96234b26cbd6083a6 (diff) | |
| download | linux-9b8523423b23ee3dfd88e32f5b7207be56a4e782.tar.bz2 | |
vfs: move __sb_{start,end}_write* to fs.h
Now that we've straightened out the callers, move these three functions
to fs.h since they're fairly trivial.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 305989afd49c..6dabd019cab0 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1580,9 +1580,24 @@ extern struct timespec64 current_time(struct inode *inode); * Snapshotting support. */ -void __sb_end_write(struct super_block *sb, int level); -void __sb_start_write(struct super_block *sb, int level); -bool __sb_start_write_trylock(struct super_block *sb, int level); +/* + * These are internal functions, please use sb_start_{write,pagefault,intwrite} + * instead. + */ +static inline void __sb_end_write(struct super_block *sb, int level) +{ + percpu_up_read(sb->s_writers.rw_sem + level-1); +} + +static inline void __sb_start_write(struct super_block *sb, int level) +{ + percpu_down_read(sb->s_writers.rw_sem + level - 1); +} + +static inline bool __sb_start_write_trylock(struct super_block *sb, int level) +{ + return percpu_down_read_trylock(sb->s_writers.rw_sem + level - 1); +} #define __sb_writers_acquired(sb, lev) \ percpu_rwsem_acquire(&(sb)->s_writers.rw_sem[(lev)-1], 1, _THIS_IP_) |