#define xfs_buf_item_log_check(x)
#endif
-STATIC void xfs_buf_error_relse(xfs_buf_t *bp);
STATIC void xfs_buf_do_callbacks(struct xfs_buf *bp);
/*
*/
void
xfs_buf_iodone_callbacks(
- xfs_buf_t *bp)
+ struct xfs_buf *bp)
{
- xfs_log_item_t *lip;
- static ulong lasttime;
- static xfs_buftarg_t *lasttarg;
- xfs_mount_t *mp;
+ struct xfs_log_item *lip = bp->b_fspriv;
+ struct xfs_mount *mp = lip->li_mountp;
+ static ulong lasttime;
+ static xfs_buftarg_t *lasttarg;
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
- lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+ if (likely(!XFS_BUF_GETERROR(bp)))
+ goto do_callbacks;
- if (XFS_BUF_GETERROR(bp) != 0) {
- /*
- * If we've already decided to shutdown the filesystem
- * because of IO errors, there's no point in giving this
- * a retry.
- */
- mp = lip->li_mountp;
- if (XFS_FORCED_SHUTDOWN(mp)) {
- ASSERT(XFS_BUF_TARGET(bp) == mp->m_ddev_targp);
- XFS_BUF_SUPER_STALE(bp);
- trace_xfs_buf_item_iodone(bp, _RET_IP_);
- xfs_buf_do_callbacks(bp);
- XFS_BUF_SET_FSPRIVATE(bp, NULL);
- XFS_BUF_CLR_IODONE_FUNC(bp);
- xfs_buf_ioend(bp, 0);
- return;
- }
+ /*
+ * If we've already decided to shutdown the filesystem because of
+ * I/O errors, there's no point in giving this a retry.
+ */
+ if (XFS_FORCED_SHUTDOWN(mp)) {
+ XFS_BUF_SUPER_STALE(bp);
+ trace_xfs_buf_item_iodone(bp, _RET_IP_);
+ goto do_callbacks;
+ }
- if ((XFS_BUF_TARGET(bp) != lasttarg) ||
- (time_after(jiffies, (lasttime + 5*HZ)))) {
- lasttime = jiffies;
- cmn_err(CE_ALERT, "Device %s, XFS metadata write error"
- " block 0x%llx in %s",
- XFS_BUFTARG_NAME(XFS_BUF_TARGET(bp)),
- (__uint64_t)XFS_BUF_ADDR(bp), mp->m_fsname);
- }
- lasttarg = XFS_BUF_TARGET(bp);
+ if (XFS_BUF_TARGET(bp) != lasttarg ||
+ time_after(jiffies, (lasttime + 5*HZ))) {
+ lasttime = jiffies;
+ cmn_err(CE_ALERT, "Device %s, XFS metadata write error"
+ " block 0x%llx in %s",
+ XFS_BUFTARG_NAME(XFS_BUF_TARGET(bp)),
+ (__uint64_t)XFS_BUF_ADDR(bp), mp->m_fsname);
+ }
+ lasttarg = XFS_BUF_TARGET(bp);
- if (XFS_BUF_ISASYNC(bp)) {
- /*
- * If the write was asynchronous then noone will be
- * looking for the error. Clear the error state
- * and write the buffer out again delayed write.
- *
- * XXXsup This is OK, so long as we catch these
- * before we start the umount; we don't want these
- * DELWRI metadata bufs to be hanging around.
- */
- XFS_BUF_ERROR(bp,0); /* errno of 0 unsets the flag */
-
- if (!(XFS_BUF_ISSTALE(bp))) {
- XFS_BUF_DELAYWRITE(bp);
- XFS_BUF_DONE(bp);
- XFS_BUF_SET_START(bp);
- }
- ASSERT(XFS_BUF_IODONE_FUNC(bp));
- trace_xfs_buf_item_iodone_async(bp, _RET_IP_);
- xfs_buf_relse(bp);
- } else {
- /*
- * If the write of the buffer was not asynchronous,
- * then we want to make sure to return the error
- * to the caller of bwrite(). Because of this we
- * cannot clear the B_ERROR state at this point.
- * Instead we install a callback function that
- * will be called when the buffer is released, and
- * that routine will clear the error state and
- * set the buffer to be written out again after
- * some delay.
- */
- /* We actually overwrite the existing b-relse
- function at times, but we're gonna be shutting down
- anyway. */
- XFS_BUF_SET_BRELSE_FUNC(bp,xfs_buf_error_relse);
+ /*
+ * If the write was asynchronous then noone will be looking for the
+ * error. Clear the error state and write the buffer out again.
+ *
+ * During sync or umount we'll write all pending buffers again
+ * synchronous, which will catch these errors if they keep hanging
+ * around.
+ */
+ if (XFS_BUF_ISASYNC(bp)) {
+ XFS_BUF_ERROR(bp, 0); /* errno of 0 unsets the flag */
+
+ if (!XFS_BUF_ISSTALE(bp)) {
+ XFS_BUF_DELAYWRITE(bp);
XFS_BUF_DONE(bp);
- XFS_BUF_FINISH_IOWAIT(bp);
+ XFS_BUF_SET_START(bp);
}
+ ASSERT(XFS_BUF_IODONE_FUNC(bp));
+ trace_xfs_buf_item_iodone_async(bp, _RET_IP_);
+ xfs_buf_relse(bp);
return;
}
- xfs_buf_do_callbacks(bp);
- XFS_BUF_SET_FSPRIVATE(bp, NULL);
- XFS_BUF_CLR_IODONE_FUNC(bp);
- xfs_buf_ioend(bp, 0);
-}
-
-/*
- * This is a callback routine attached to a buffer which gets an error
- * when being written out synchronously.
- */
-STATIC void
-xfs_buf_error_relse(
- xfs_buf_t *bp)
-{
- xfs_log_item_t *lip;
- xfs_mount_t *mp;
-
- lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
- mp = (xfs_mount_t *)lip->li_mountp;
- ASSERT(XFS_BUF_TARGET(bp) == mp->m_ddev_targp);
-
+ /*
+ * If the write of the buffer was synchronous, we want to make
+ * sure to return the error to the caller of xfs_bwrite().
+ */
XFS_BUF_STALE(bp);
XFS_BUF_DONE(bp);
XFS_BUF_UNDELAYWRITE(bp);
- XFS_BUF_ERROR(bp,0);
trace_xfs_buf_error_relse(bp, _RET_IP_);
+ xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
- if (! XFS_FORCED_SHUTDOWN(mp))
- xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
- /*
- * We have to unpin the pinned buffers so do the
- * callbacks.
- */
+do_callbacks:
xfs_buf_do_callbacks(bp);
XFS_BUF_SET_FSPRIVATE(bp, NULL);
XFS_BUF_CLR_IODONE_FUNC(bp);
- XFS_BUF_SET_BRELSE_FUNC(bp,NULL);
- xfs_buf_relse(bp);
+ xfs_buf_ioend(bp, 0);
}
-
/*
* This is the iodone() function for buffers which have been
* logged. It is called when they are eventually flushed out.
git.openpandora.org / pandora-kernel.git / blobdiff