From: Fabian Frederick Date: Mon, 27 Feb 2017 22:27:46 +0000 (-0800) Subject: fs/affs: add validation block function X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=d5de9fd594eba1b94f0ef701c044f567f605bc9e;p=openwrt%2Fstaging%2Fblogic.git 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 Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/affs/affs.h b/fs/affs/affs.h index 899256b8e918..efe683947df9 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);