From: Fabian Frederick <fabf@xxxxxxxxx> Subject: fs/affs: add validation block function Avoid repeating 4 times the same calculation. Link: http://lkml.kernel.org/r/20170109191208.6085-3-fabf@xxxxxxxxx Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- 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); _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
