On Thu, Jun 29, 2017 at 09:19:54AM -0400, jlayton@xxxxxxxxxx wrote: > From: Jeff Layton <jlayton@xxxxxxxxxx> > > Just check and advance the errseq_t in the file before returning. > Internal callers of filemap_* functions are left as-is. > > Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> > --- > fs/btrfs/file.c | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c > index da1096eb1a40..1f57e1a523d9 100644 > --- a/fs/btrfs/file.c > +++ b/fs/btrfs/file.c > @@ -2011,7 +2011,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) > struct btrfs_root *root = BTRFS_I(inode)->root; > struct btrfs_trans_handle *trans; > struct btrfs_log_ctx ctx; > - int ret = 0; > + int ret = 0, err; > bool full_sync = 0; > u64 len; > > @@ -2030,7 +2030,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) > */ > ret = start_ordered_ops(inode, start, end); > if (ret) > - return ret; > + goto out; > > inode_lock(inode); > atomic_inc(&root->log_batch); > @@ -2227,6 +2227,9 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) > ret = btrfs_end_transaction(trans); > } > out: > + err = file_check_and_advance_wb_err(file); > + if (!ret) > + ret = err; > return ret > 0 ? -EIO : ret; This means that we'll lose the exact error returned from start_ordered_ops. Beyond that I can't really provide good feedback as the btrfs fsync code looks so much different from all the other fs fsync code..
