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-rw-r--r--fs/xfs/xfs_iget.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index a1f209b..377c0cd 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -159,18 +159,19 @@ xfs_iget_cache_miss(
goto out_destroy;
}
+ if (lock_flags)
+ xfs_ilock(ip, lock_flags);
+
/*
* Preload the radix tree so we can insert safely under the
- * write spinlock.
+ * write spinlock. Note that we cannot sleep inside the preload
+ * region.
*/
if (radix_tree_preload(GFP_KERNEL)) {
error = EAGAIN;
- goto out_destroy;
+ goto out_unlock;
}
- if (lock_flags)
- xfs_ilock(ip, lock_flags);
-
mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1);
first_index = agino & mask;
write_lock(&pag->pag_ici_lock);
@@ -181,7 +182,7 @@ xfs_iget_cache_miss(
WARN_ON(error != -EEXIST);
XFS_STATS_INC(xs_ig_dup);
error = EAGAIN;
- goto out_unlock;
+ goto out_preload_end;
}
/* These values _must_ be set before releasing the radix tree lock! */
@@ -193,9 +194,12 @@ xfs_iget_cache_miss(
*ipp = ip;
return 0;
-out_unlock:
+out_preload_end:
write_unlock(&pag->pag_ici_lock);
radix_tree_preload_end();
+out_unlock:
+ if (lock_flags)
+ xfs_iunlock(ip, lock_flags);
out_destroy:
xfs_idestroy(ip);
return error;