diff options
| author | Christoph Hellwig | 2011-08-24 07:59:25 +0200 |
|---|---|---|
| committer | Alex Elder | 2011-10-12 04:15:01 +0200 |
| commit | 04f658ee229f60dbb9a0dc2f3d6871b12b758051 (patch) | |
| tree | eee3e17cf4af0f5c6cbb8393f247dfb6d823615a /fs/xfs/xfs_aops.c | |
| parent | xfs: avoid direct I/O write vs buffered I/O race (diff) | |
| download | kernel-qcow2-linux-04f658ee229f60dbb9a0dc2f3d6871b12b758051.tar.gz kernel-qcow2-linux-04f658ee229f60dbb9a0dc2f3d6871b12b758051.tar.xz kernel-qcow2-linux-04f658ee229f60dbb9a0dc2f3d6871b12b758051.zip | |
xfs: improve ioend error handling
Return unwritten extent conversion errors to aio_complete.
Skip both unwritten extent conversion and size updates if we had an
I/O error or the filesystem has been shut down.
Return -EIO to the aio/buffer completion handlers in case of a
forced shutdown.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_aops.c')
| -rw-r--r-- | fs/xfs/xfs_aops.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 46bba3e0af47..22aadf667862 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -88,8 +88,10 @@ xfs_destroy_ioend( } if (ioend->io_iocb) { - if (ioend->io_isasync) - aio_complete(ioend->io_iocb, ioend->io_result, 0); + if (ioend->io_isasync) { + aio_complete(ioend->io_iocb, ioend->io_error ? + ioend->io_error : ioend->io_result, 0); + } inode_dio_done(ioend->io_inode); } @@ -141,9 +143,6 @@ xfs_setfilesize( xfs_inode_t *ip = XFS_I(ioend->io_inode); xfs_fsize_t isize; - if (unlikely(ioend->io_error)) - return 0; - if (!xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) return EAGAIN; @@ -189,17 +188,24 @@ xfs_end_io( struct xfs_inode *ip = XFS_I(ioend->io_inode); int error = 0; + if (XFS_FORCED_SHUTDOWN(ip->i_mount)) { + error = -EIO; + goto done; + } + if (ioend->io_error) + goto done; + /* * For unwritten extents we need to issue transactions to convert a * range to normal written extens after the data I/O has finished. */ - if (ioend->io_type == IO_UNWRITTEN && - likely(!ioend->io_error && !XFS_FORCED_SHUTDOWN(ip->i_mount))) { - + if (ioend->io_type == IO_UNWRITTEN) { error = xfs_iomap_write_unwritten(ip, ioend->io_offset, ioend->io_size); - if (error) - ioend->io_error = error; + if (error) { + ioend->io_error = -error; + goto done; + } } /* @@ -209,6 +215,7 @@ xfs_end_io( error = xfs_setfilesize(ioend); ASSERT(!error || error == EAGAIN); +done: /* * If we didn't complete processing of the ioend, requeue it to the * tail of the workqueue for another attempt later. Otherwise destroy |