@@ -649,6 +649,8 @@ lookup_again:
aops = object->dentry->d_inode->i_mapping->a_ops;
if (!aops->bmap)
goto check_error;
+ if (object->dentry->d_sb->s_blocksize > PAGE_SIZE)
+ goto check_error;
object->backer = object->dentry;
} else {
@@ -414,9 +414,6 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op,
ASSERT(inode->i_mapping->a_ops->readpages);
/* calculate the shift required to use bmap */
- if (inode->i_sb->s_blocksize > PAGE_SIZE)
- goto enobufs;
-
shift = PAGE_SHIFT - inode->i_sb->s_blocksize_bits;
op->op.flags &= FSCACHE_OP_KEEP_FLAGS;
@@ -711,9 +708,6 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op,
ASSERT(inode->i_mapping->a_ops->readpages);
/* calculate the shift required to use bmap */
- if (inode->i_sb->s_blocksize > PAGE_SIZE)
- goto all_enobufs;
-
shift = PAGE_SHIFT - inode->i_sb->s_blocksize_bits;
pagevec_init(&pagevec, 0);
cachefiles requires that s_blocksize in the cache is not greater than PAGE_SIZE, and performs the check every time a block is accessed. Move the test to the place where the file is "opened", where other file-validity tests are performed. Signed-off-by: NeilBrown <neilb@suse.de> --- fs/cachefiles/namei.c | 2 ++ fs/cachefiles/rdwr.c | 6 ------ 2 files changed, 2 insertions(+), 6 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html