+ fs-affs-add-validation-block-function.patch added to -mm tree

+ fs-affs-add-validation-block-function.patch added to -mm tree

[akpm]

The patch titled
     Subject: fs/affs: add validation block function
has been added to the -mm tree.  Its filename is
     fs-affs-add-validation-block-function.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/fs-affs-add-validation-block-function.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/fs-affs-add-validation-block-function.patch

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------------------------------------------------------
From: Fabian Frederick <fabf@skynet.be>
Subject: fs/affs: add validation block function

Avoid repeating 4 times the same calculation.

Link: http://lkml.kernel.org/r/20170109191208.6085-3-fabf@skynet.be
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/affs/affs.h |   14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff -puN fs/affs/affs.h~fs-affs-add-validation-block-function fs/affs/affs.h
--- a/fs/affs/affs.h~fs-affs-add-validation-block-function
+++ a/fs/affs/affs.h
@@ -212,6 +212,12 @@ extern const struct address_space_operat
 extern const struct dentry_operations	 affs_dentry_operations;
 extern const struct dentry_operations	 affs_intl_dentry_operations;
 
+static inline bool affs_validblock(struct super_block *sb, int block)
+{
+	return(block >= AFFS_SB(sb)->s_reserved &&
+	       block < AFFS_SB(sb)->s_partition_size);
+}
+
 static inline void
 affs_set_blocksize(struct super_block *sb, int size)
 {
@@ -221,7 +227,7 @@ static inline struct buffer_head *
 affs_bread(struct super_block *sb, int block)
 {
 	pr_debug("%s: %d\n", __func__, block);
-	if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size)
+	if (affs_validblock(sb, block))
 		return sb_bread(sb, block);
 	return NULL;
 }
@@ -229,7 +235,7 @@ static inline struct buffer_head *
 affs_getblk(struct super_block *sb, int block)
 {
 	pr_debug("%s: %d\n", __func__, block);
-	if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size)
+	if (affs_validblock(sb, block))
 		return sb_getblk(sb, block);
 	return NULL;
 }
@@ -238,7 +244,7 @@ affs_getzeroblk(struct super_block *sb,
 {
 	struct buffer_head *bh;
 	pr_debug("%s: %d\n", __func__, block);
-	if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size) {
+	if (affs_validblock(sb, block)) {
 		bh = sb_getblk(sb, block);
 		lock_buffer(bh);
 		memset(bh->b_data, 0 , sb->s_blocksize);
@@ -253,7 +259,7 @@ affs_getemptyblk(struct super_block *sb,
 {
 	struct buffer_head *bh;
 	pr_debug("%s: %d\n", __func__, block);
-	if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size) {
+	if (affs_validblock(sb, block)) {
 		bh = sb_getblk(sb, block);
 		wait_on_buffer(bh);
 		set_buffer_uptodate(bh);
_

Patches currently in -mm which might be from fabf@skynet.be are

documentation-filesystems-proctxt-add-vmpin.patch
fs-affs-remove-reference-to-affs_parent_ino.patch
fs-affs-add-validation-block-function.patch
fs-affs-make-affs-exportable.patch
fs-affs-use-octal-for-permissions.patch
fs-affs-add-prefix-to-some-functions.patch
fs-affs-nameic-forward-declarations-clean-up.patch
fs-affs-make-export-work-with-cold-dcache.patch
fs-add-i_blocksize.patch