[XFS] Add a greedy allocation interface, allocating within a min/max size

range.

SGI-PV: 955302
SGI-Modid: xfs-linux-melb:xfs-kern:26803a

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 8 insertions, 9 deletions

diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 30eebc2fd90e..e304ab078273 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -50,7 +50,7 @@ void
 xfs_ihash_init(xfs_mount_t *mp)
 {
         __uint64_t      icount;
-        uint            i, flags = KM_SLEEP | KM_MAYFAIL | KM_LARGE;
+        uint            i;
 
         if (!mp->m_ihsize) {
                 icount = mp->m_maxicount ? mp->m_maxicount :
@@ -61,14 +61,13 @@ xfs_ihash_init(xfs_mount_t *mp)
                                         (64 * NBPP) / sizeof(xfs_ihash_t));
         }
 
-        while (!(mp->m_ihash = (xfs_ihash_t *)kmem_zalloc(mp->m_ihsize *
-                                                sizeof(xfs_ihash_t), flags))) {
-                if ((mp->m_ihsize >>= 1) <= NBPP)
-                        flags = KM_SLEEP;
-        }
-        for (i = 0; i < mp->m_ihsize; i++) {
+        mp->m_ihash = kmem_zalloc_greedy(&mp->m_ihsize,
+                                         NBPC * sizeof(xfs_ihash_t),
+                                         mp->m_ihsize * sizeof(xfs_ihash_t),
+                                         KM_SLEEP | KM_MAYFAIL | KM_LARGE);
+        mp->m_ihsize /= sizeof(xfs_ihash_t);
+        for (i = 0; i < mp->m_ihsize; i++)
                 rwlock_init(&(mp->m_ihash[i].ih_lock));
-        }
 }
 
 /*
@@ -77,7 +76,7 @@ xfs_ihash_init(xfs_mount_t *mp)
 void
 xfs_ihash_free(xfs_mount_t *mp)
 {
-        kmem_free(mp->m_ihash, mp->m_ihsize*sizeof(xfs_ihash_t));
+        kmem_free(mp->m_ihash, mp->m_ihsize * sizeof(xfs_ihash_t));
         mp->m_ihash = NULL;
 }