writeback: merge try_to_writeback_inodes_sb_nr() into caller
Since commit 925a6efb8ff0c ("Btrfs: stop using
try_to_writeback_inodes_sb_nr to flush delalloc") this function hasn't
been used outside so stop exporting it.
In addition we merge it into try_to_writeback_inodes_sb() which is the
only caller. Also change return type of try_to_writeback_inodes_sb to
void as the only user ext4 doesn't care.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 9e24d60..08f5deb 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2376,37 +2376,19 @@ void writeback_inodes_sb(struct super_block *sb, enum wb_reason reason)
EXPORT_SYMBOL(writeback_inodes_sb);
/**
- * try_to_writeback_inodes_sb_nr - try to start writeback if none underway
- * @sb: the superblock
- * @nr: the number of pages to write
- * @reason: the reason of writeback
- *
- * Invoke writeback_inodes_sb_nr if no writeback is currently underway.
- * Returns 1 if writeback was started, 0 if not.
- */
-bool try_to_writeback_inodes_sb_nr(struct super_block *sb, unsigned long nr,
- enum wb_reason reason)
-{
- if (!down_read_trylock(&sb->s_umount))
- return false;
-
- __writeback_inodes_sb_nr(sb, nr, reason, true);
- up_read(&sb->s_umount);
- return true;
-}
-EXPORT_SYMBOL(try_to_writeback_inodes_sb_nr);
-
-/**
* try_to_writeback_inodes_sb - try to start writeback if none underway
* @sb: the superblock
* @reason: reason why some writeback work was initiated
*
- * Implement by try_to_writeback_inodes_sb_nr()
- * Returns 1 if writeback was started, 0 if not.
+ * Invoke __writeback_inodes_sb_nr if no writeback is currently underway.
*/
-bool try_to_writeback_inodes_sb(struct super_block *sb, enum wb_reason reason)
+void try_to_writeback_inodes_sb(struct super_block *sb, enum wb_reason reason)
{
- return try_to_writeback_inodes_sb_nr(sb, get_nr_dirty_pages(), reason);
+ if (!down_read_trylock(&sb->s_umount))
+ return;
+
+ __writeback_inodes_sb_nr(sb, get_nr_dirty_pages(), reason, true);
+ up_read(&sb->s_umount);
}
EXPORT_SYMBOL(try_to_writeback_inodes_sb);
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index dd1d2c2..e15ec14 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -163,9 +163,7 @@ struct bdi_writeback;
void writeback_inodes_sb(struct super_block *, enum wb_reason reason);
void writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
enum wb_reason reason);
-bool try_to_writeback_inodes_sb(struct super_block *, enum wb_reason reason);
-bool try_to_writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
- enum wb_reason reason);
+void try_to_writeback_inodes_sb(struct super_block *sb, enum wb_reason reason);
void sync_inodes_sb(struct super_block *);
void wakeup_flusher_threads(enum wb_reason reason);
void wakeup_flusher_threads_bdi(struct backing_dev_info *bdi,