summaryrefslogtreecommitdiffstats
path: root/fs/xfs/linux-2.6
diff options
context:
space:
mode:
authorNathan Scott <nathans@sgi.com>2006-06-09 14:58:38 +1000
committerNathan Scott <nathans@sgi.com>2006-06-09 14:58:38 +1000
commit7d04a335b6b2d79e3742ffd28bd651204574e794 (patch)
tree2b687202ae47c5e0c70a2b921b77135066131d8d /fs/xfs/linux-2.6
parentb76963fac4a17b661bad46e5a57b0f918c6f0cd1 (diff)
downloadlinux-7d04a335b6b2d79e3742ffd28bd651204574e794.tar.gz
linux-7d04a335b6b2d79e3742ffd28bd651204574e794.tar.bz2
linux-7d04a335b6b2d79e3742ffd28bd651204574e794.zip
[XFS] Shutdown the filesystem if all device paths have gone. Made
shutdown vop flags consistent with sync vop flags declarations too. SGI-PV: 939911 SGI-Modid: xfs-linux-melb:xfs-kern:26096a Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6')
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.c15
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.h2
-rw-r--r--fs/xfs/linux-2.6/xfs_vfs.h7
-rw-r--r--fs/xfs/linux-2.6/xfs_vnode.c16
-rw-r--r--fs/xfs/linux-2.6/xfs_vnode.h2
5 files changed, 33 insertions, 9 deletions
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 4d191ef39b67..1fcdc0abda6e 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -136,9 +136,10 @@ xfs_destroy_ioend(
for (bh = ioend->io_buffer_head; bh; bh = next) {
next = bh->b_private;
- bh->b_end_io(bh, ioend->io_uptodate);
+ bh->b_end_io(bh, !ioend->io_error);
}
-
+ if (unlikely(ioend->io_error))
+ vn_ioerror(ioend->io_vnode, ioend->io_error, __FILE__,__LINE__);
vn_iowake(ioend->io_vnode);
mempool_free(ioend, xfs_ioend_pool);
}
@@ -185,7 +186,7 @@ xfs_end_bio_unwritten(
size_t size = ioend->io_size;
int error;
- if (ioend->io_uptodate)
+ if (likely(!ioend->io_error))
VOP_BMAP(vp, offset, size, BMAPI_UNWRITTEN, NULL, NULL, error);
xfs_destroy_ioend(ioend);
}
@@ -211,7 +212,7 @@ xfs_alloc_ioend(
* all the I/O from calling the completion routine too early.
*/
atomic_set(&ioend->io_remaining, 1);
- ioend->io_uptodate = 1; /* cleared if any I/O fails */
+ ioend->io_error = 0;
ioend->io_list = NULL;
ioend->io_type = type;
ioend->io_vnode = vn_from_inode(inode);
@@ -271,16 +272,14 @@ xfs_end_bio(
if (bio->bi_size)
return 1;
- ASSERT(ioend);
ASSERT(atomic_read(&bio->bi_cnt) >= 1);
+ ioend->io_error = test_bit(BIO_UPTODATE, &bio->bi_flags) ? 0 : error;
/* Toss bio and pass work off to an xfsdatad thread */
- if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
- ioend->io_uptodate = 0;
bio->bi_private = NULL;
bio->bi_end_io = NULL;
-
bio_put(bio);
+
xfs_finish_ioend(ioend);
return 0;
}
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 60716543c68b..41c7d2da638a 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -30,7 +30,7 @@ typedef void (*xfs_ioend_func_t)(void *);
typedef struct xfs_ioend {
struct xfs_ioend *io_list; /* next ioend in chain */
unsigned int io_type; /* delalloc / unwritten */
- unsigned int io_uptodate; /* I/O status register */
+ int io_error; /* I/O error code */
atomic_t io_remaining; /* hold count */
struct vnode *io_vnode; /* file being written to */
struct buffer_head *io_buffer_head;/* buffer linked list head */
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index 841200c03092..2ca05043a0fd 100644
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -94,6 +94,13 @@ typedef enum {
#define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */
#define SYNC_QUIESCE 0x0100 /* quiesce filesystem for a snapshot */
+#define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */
+#define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */
+#define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */
+#define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */
+#define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */
+#define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */
+
typedef int (*vfs_mount_t)(bhv_desc_t *,
struct xfs_mount_args *, struct cred *);
typedef int (*vfs_parseargs_t)(bhv_desc_t *, char *,
diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
index d27c25b27ccd..f17e39cff230 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -54,6 +54,22 @@ vn_iowake(
wake_up(vptosync(vp));
}
+/*
+ * Volume managers supporting multiple paths can send back ENODEV when the
+ * final path disappears. In this case continuing to fill the page cache
+ * with dirty data which cannot be written out is evil, so prevent that.
+ */
+void
+vn_ioerror(
+ struct vnode *vp,
+ int error,
+ char *f,
+ int l)
+{
+ if (unlikely(error == -ENODEV))
+ VFS_FORCE_SHUTDOWN(vp->v_vfsp, SHUTDOWN_DEVICE_REQ, f, l);
+}
+
struct vnode *
vn_initialize(
struct inode *inode)
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 2a8e16c22353..a64b7db67003 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -514,6 +514,8 @@ extern void vn_revalidate_core(struct vnode *, vattr_t *);
extern void vn_iowait(struct vnode *vp);
extern void vn_iowake(struct vnode *vp);
+extern void vn_ioerror(struct vnode *vp, int error, char *f, int l);
+
static inline int vn_count(struct vnode *vp)
{
return atomic_read(&vn_to_inode(vp)->i_count);