diff options
Diffstat (limited to 'fs/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 28 |
1 files changed, 1 insertions, 27 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 6d49439ca31d..1599aa985fe2 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -480,32 +480,6 @@ writeback_single_inode(struct inode *inode, struct bdi_writeback *wb, return ret; } -/* - * For background writeback the caller does not have the sb pinned - * before calling writeback. So make sure that we do pin it, so it doesn't - * go away while we are writing inodes from it. - */ -static bool pin_sb_for_writeback(struct super_block *sb) -{ - spin_lock(&sb_lock); - if (list_empty(&sb->s_instances)) { - spin_unlock(&sb_lock); - return false; - } - - sb->s_count++; - spin_unlock(&sb_lock); - - if (down_read_trylock(&sb->s_umount)) { - if (sb->s_root) - return true; - up_read(&sb->s_umount); - } - - put_super(sb); - return false; -} - static long writeback_chunk_size(struct backing_dev_info *bdi, struct wb_writeback_work *work) { @@ -643,7 +617,7 @@ static long __writeback_inodes_wb(struct bdi_writeback *wb, struct inode *inode = wb_inode(wb->b_io.prev); struct super_block *sb = inode->i_sb; - if (!pin_sb_for_writeback(sb)) { + if (!grab_super_passive(sb)) { requeue_io(inode, wb); continue; } |