From: Fabian Frederick <fabf@skynet.be>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>, Alexander Viro <viro@zeniv.linux.org.uk>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
fabf@skynet.be
Subject: [PATCH V2 2/7 linux-next] fs/affs: add validation block function
Date: Mon, 9 Jan 2017 20:12:03 +0100 [thread overview]
Message-ID: <20170109191208.6085-3-fabf@skynet.be> (raw)
In-Reply-To: <20170109191208.6085-1-fabf@skynet.be>
avoid repeating 4 times the same calculation.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
fs/affs/affs.h | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 899256b..efe6839 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -212,6 +212,12 @@ extern const struct address_space_operations affs_aops_ofs;
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, int block)
{
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, int block)
{
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);
--
2.9.3
next prev parent reply other threads:[~2017-01-09 19:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-09 19:12 [PATCH V2 0/7 linux-next] make FS exportable plus some clean-up Fabian Frederick
2017-01-09 19:12 ` [PATCH V2 1/7 linux-next] fs/affs: remove reference to affs_parent_ino() Fabian Frederick
2017-01-09 19:12 ` Fabian Frederick [this message]
2017-01-09 19:12 ` [PATCH V2 3/7 linux-next] fs/affs: make affs exportable Fabian Frederick
2017-01-09 19:12 ` [PATCH V2 4/7 linux-next] fs/affs: use octal for permissions Fabian Frederick
2017-01-09 19:12 ` [PATCH V2 5/7 linux-next] fs/affs: add prefix to some functions Fabian Frederick
2017-01-09 19:12 ` [PATCH V2 6/7 linux-next] fs/affs/namei.c: forward declarations clean-up Fabian Frederick
2017-01-09 19:12 ` [PATCH V2 7/7 linux-next] fs/affs: make export work with cold dcache Fabian Frederick
2017-01-18 18:46 ` [PATCH V2 0/7 linux-next] make FS exportable plus some clean-up Fabian Frederick
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