* The actual compression is based on zlib, see the other files.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
/* check for wrong endianness */
if (super.magic == CRAMFS_MAGIC_WEND) {
if (!silent)
- pr_err("cramfs: wrong endianness\n");
+ pr_err("wrong endianness\n");
return -EINVAL;
}
mutex_unlock(&read_mutex);
if (super.magic != CRAMFS_MAGIC) {
if (super.magic == CRAMFS_MAGIC_WEND && !silent)
- pr_err("cramfs: wrong endianness\n");
+ pr_err("wrong endianness\n");
else if (!silent)
- pr_err("cramfs: wrong magic\n");
+ pr_err("wrong magic\n");
return -EINVAL;
}
}
/* get feature flags first */
if (super.flags & ~CRAMFS_SUPPORTED_FLAGS) {
- pr_err("cramfs: unsupported filesystem features\n");
+ pr_err("unsupported filesystem features\n");
return -EINVAL;
}
/* Check that the root inode is in a sane state */
if (!S_ISDIR(super.root.mode)) {
- pr_err("cramfs: root is not a directory\n");
+ pr_err("root is not a directory\n");
return -EINVAL;
}
/* correct strange, hard-coded permissions of mkcramfs */
sbi->magic=super.magic;
sbi->flags=super.flags;
if (root_offset == 0)
- pr_info("cramfs: empty filesystem");
+ pr_info("empty filesystem");
else if (!(super.flags & CRAMFS_FLAG_SHIFTED_ROOT_OFFSET) &&
((root_offset != sizeof(struct cramfs_super)) &&
(root_offset != 512 + sizeof(struct cramfs_super))))
{
- pr_err("cramfs: bad root offset %lu\n", root_offset);
+ pr_err("bad root offset %lu\n", root_offset);
return -EINVAL;
}
if (compr_len == 0)
; /* hole */
else if (unlikely(compr_len > (PAGE_CACHE_SIZE << 1))) {
- pr_err("cramfs: bad compressed blocksize %u\n",
+ pr_err("bad compressed blocksize %u\n",
compr_len);
goto err;
} else {