1 files changed, 12 insertions, 15 deletions

diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 24b4ebea0d4d..bb502a391792 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -34,18 +34,16 @@
 #include <linux/backing-dev.h>
 #include <linux/freezer.h>
 
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
-#include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_trace.h"
 #include "xfs_log.h"
 
 static kmem_zone_t *xfs_buf_zone;
 
-static struct workqueue_struct *xfslogd_workqueue;
-
 #ifdef XFS_BUF_LOCK_TRACKING
 # define XB_SET_OWNER(bp)       ((bp)->b_last_holder = current->pid)
 # define XB_CLEAR_OWNER(bp)     ((bp)->b_last_holder = -1)
@@ -463,7 +461,7 @@ _xfs_buf_find(
          * have to check that the buffer falls within the filesystem bounds.
          */
         eofs = XFS_FSB_TO_BB(btp->bt_mount, btp->bt_mount->m_sb.sb_dblocks);
-        if (blkno >= eofs) {
+        if (blkno < 0 || blkno >= eofs) {
                 /*
                  * XXX (dgc): we should really be returning -EFSCORRUPTED here,
                  * but none of the higher level infrastructure supports
@@ -1043,7 +1041,7 @@ xfs_buf_ioend_work(
         struct work_struct      *work)
 {
         struct xfs_buf          *bp =
-                container_of(work, xfs_buf_t, b_iodone_work);
+                container_of(work, xfs_buf_t, b_ioend_work);
 
         xfs_buf_ioend(bp);
 }
@@ -1052,8 +1050,8 @@ void
 xfs_buf_ioend_async(
         struct xfs_buf  *bp)
 {
-        INIT_WORK(&bp->b_iodone_work, xfs_buf_ioend_work);
-        queue_work(xfslogd_workqueue, &bp->b_iodone_work);
+        INIT_WORK(&bp->b_ioend_work, xfs_buf_ioend_work);
+        queue_work(bp->b_ioend_wq, &bp->b_ioend_work);
 }
 
 void
@@ -1222,6 +1220,13 @@ _xfs_buf_ioapply(
          */
         bp->b_error = 0;
 
+        /*
+         * Initialize the I/O completion workqueue if we haven't yet or the
+         * submitter has not opted to specify a custom one.
+         */
+        if (!bp->b_ioend_wq)
+                bp->b_ioend_wq = bp->b_target->bt_mount->m_buf_workqueue;
+
         if (bp->b_flags & XBF_WRITE) {
                 if (bp->b_flags & XBF_SYNCIO)
                         rw = WRITE_SYNC;
@@ -1882,15 +1887,8 @@ xfs_buf_init(void)
         if (!xfs_buf_zone)
                 goto out;
 
-        xfslogd_workqueue = alloc_workqueue("xfslogd",
-                                WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_FREEZABLE, 1);
-        if (!xfslogd_workqueue)
-                goto out_free_buf_zone;
-
         return 0;
 
- out_free_buf_zone:
-        kmem_zone_destroy(xfs_buf_zone);
  out:
         return -ENOMEM;
 }
@@ -1898,6 +1896,5 @@ xfs_buf_init(void)
 void
 xfs_buf_terminate(void)
 {
-        destroy_workqueue(xfslogd_workqueue);
         kmem_zone_destroy(xfs_buf_zone);
 }