[PATCH 1/3] xfs: remove kmem_realloc()

["Darrick J. Wong" <darrick.wong@xxxxxxxxxx>]

From: Carlos Maiolino <cmaiolino@xxxxxxxxxx>

Source kernel commit: 771915c4f68889b8c41092a928c604c9cd279927

Remove kmem_realloc() function and convert its users to use MM API
directly (krealloc())

Signed-off-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
 include/kmem.h            |    2 +-
 libxfs/kmem.c             |    2 +-
 libxfs/xfs_iext_tree.c    |    2 +-
 libxfs/xfs_inode_fork.c   |    8 ++++----
 libxlog/xfs_log_recover.c |    2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)


diff --git a/include/kmem.h b/include/kmem.h
index 75fb00579904..c8e25953fd9f 100644
--- a/include/kmem.h
+++ b/include/kmem.h
@@ -46,6 +46,6 @@ kmem_free(void *ptr) {
 	free(ptr);
 }
 
-extern void	*kmem_realloc(void *, size_t, int);
+extern void	*krealloc(void *, size_t, int);
 
 #endif
diff --git a/libxfs/kmem.c b/libxfs/kmem.c
index a7a3f2d07102..ee50ab667e56 100644
--- a/libxfs/kmem.c
+++ b/libxfs/kmem.c
@@ -91,7 +91,7 @@ kmem_zalloc(size_t size, int flags)
 }
 
 void *
-kmem_realloc(void *ptr, size_t new_size, int flags)
+krealloc(void *ptr, size_t new_size, int flags)
 {
 	ptr = realloc(ptr, new_size);
 	if (ptr == NULL) {
diff --git a/libxfs/xfs_iext_tree.c b/libxfs/xfs_iext_tree.c
index f68091dc65a0..a52eed0426a2 100644
--- a/libxfs/xfs_iext_tree.c
+++ b/libxfs/xfs_iext_tree.c
@@ -603,7 +603,7 @@ xfs_iext_realloc_root(
 	if (new_size / sizeof(struct xfs_iext_rec) == RECS_PER_LEAF)
 		new_size = NODE_SIZE;
 
-	new = kmem_realloc(ifp->if_u1.if_root, new_size, KM_NOFS);
+	new = krealloc(ifp->if_u1.if_root, new_size, GFP_NOFS | __GFP_NOFAIL);
 	memset(new + ifp->if_bytes, 0, new_size - ifp->if_bytes);
 	ifp->if_u1.if_root = new;
 	cur->leaf = new;
diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index 30522d695e3b..0b1af5012e41 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -384,8 +384,8 @@ xfs_iroot_realloc(
 		cur_max = xfs_bmbt_maxrecs(mp, ifp->if_broot_bytes, 0);
 		new_max = cur_max + rec_diff;
 		new_size = XFS_BMAP_BROOT_SPACE_CALC(mp, new_max);
-		ifp->if_broot = kmem_realloc(ifp->if_broot, new_size,
-				KM_NOFS);
+		ifp->if_broot = krealloc(ifp->if_broot, new_size,
+					 GFP_NOFS | __GFP_NOFAIL);
 		op = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
 						     ifp->if_broot_bytes);
 		np = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
@@ -494,8 +494,8 @@ xfs_idata_realloc(
 	 * in size so that it can be logged and stay on word boundaries.
 	 * We enforce that here.
 	 */
-	ifp->if_u1.if_data = kmem_realloc(ifp->if_u1.if_data,
-			roundup(new_size, 4), KM_NOFS);
+	ifp->if_u1.if_data = krealloc(ifp->if_u1.if_data, roundup(new_size, 4),
+				      GFP_NOFS | __GFP_NOFAIL);
 	ifp->if_bytes = new_size;
 }
 
diff --git a/libxlog/xfs_log_recover.c b/libxlog/xfs_log_recover.c
index ec6533991f0f..a7dfa7047ab9 100644
--- a/libxlog/xfs_log_recover.c
+++ b/libxlog/xfs_log_recover.c
@@ -1045,7 +1045,7 @@ xlog_recover_add_to_cont_trans(
 	old_ptr = item->ri_buf[item->ri_cnt-1].i_addr;
 	old_len = item->ri_buf[item->ri_cnt-1].i_len;
 
-	ptr = kmem_realloc(old_ptr, len+old_len, 0);
+	ptr = krealloc(old_ptr, len+old_len, 0);
 	memcpy(&ptr[old_len], dp, len); /* d, s, l */
 	item->ri_buf[item->ri_cnt-1].i_len += len;
 	item->ri_buf[item->ri_cnt-1].i_addr = ptr;