| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.6 42/56] fuse: fsync() did not return IO errors | Date | Sun, 14 Aug 2016 22:37:46 +0200 |
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4.6-stable review patch. If anyone has any objections, please let me know.
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From: Alexey Kuznetsov <kuznet@parallels.com>
commit ac7f052b9e1534c8248f814b6f0068ad8d4a06d2 upstream.
Due to implementation of fuse writeback filemap_write_and_wait_range() does not catch errors. We have to do this directly after fuse_sync_writes()
Signed-off-by: Alexey Kuznetsov <kuznet@virtuozzo.com> Signed-off-by: Maxim Patlasov <mpatlasov@virtuozzo.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Fixes: 4d99ff8f12eb ("fuse: Turn writeback cache on") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/fuse/file.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
--- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -462,6 +462,21 @@ int fuse_fsync_common(struct file *file, goto out; fuse_sync_writes(inode); + + /* + * Due to implementation of fuse writeback + * filemap_write_and_wait_range() does not catch errors. + * We have to do this directly after fuse_sync_writes() + */ + if (test_bit(AS_ENOSPC, &file->f_mapping->flags) && + test_and_clear_bit(AS_ENOSPC, &file->f_mapping->flags)) + err = -ENOSPC; + if (test_bit(AS_EIO, &file->f_mapping->flags) && + test_and_clear_bit(AS_EIO, &file->f_mapping->flags)) + err = -EIO; + if (err) + goto out; + err = sync_inode_metadata(inode, 1); if (err) goto out;
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