summaryrefslogtreecommitdiffstats
path: root/block/partitions/check.h
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2011-09-16 00:25:05 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-03 22:54:06 -0500
commit9be96f3fd10187f185d84cf878cf032465bcced3 (patch)
tree432a430ed9e0cbe0c18916cd3c3992f09b3feb37 /block/partitions/check.h
parent4752bc309b7604d507c973c7b7678ac2ce10a058 (diff)
downloadlinux-0-day-9be96f3fd10187f185d84cf878cf032465bcced3.tar.gz
linux-0-day-9be96f3fd10187f185d84cf878cf032465bcced3.tar.xz
move fs/partitions to block/
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'block/partitions/check.h')
-rw-r--r--block/partitions/check.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/block/partitions/check.h b/block/partitions/check.h
new file mode 100644
index 000000000000..d68bf4dc3bc2
--- /dev/null
+++ b/block/partitions/check.h
@@ -0,0 +1,49 @@
+#include <linux/pagemap.h>
+#include <linux/blkdev.h>
+#include <linux/genhd.h>
+
+/*
+ * add_gd_partition adds a partitions details to the devices partition
+ * description.
+ */
+struct parsed_partitions {
+ struct block_device *bdev;
+ char name[BDEVNAME_SIZE];
+ struct {
+ sector_t from;
+ sector_t size;
+ int flags;
+ bool has_info;
+ struct partition_meta_info info;
+ } parts[DISK_MAX_PARTS];
+ int next;
+ int limit;
+ bool access_beyond_eod;
+ char *pp_buf;
+};
+
+static inline void *read_part_sector(struct parsed_partitions *state,
+ sector_t n, Sector *p)
+{
+ if (n >= get_capacity(state->bdev->bd_disk)) {
+ state->access_beyond_eod = true;
+ return NULL;
+ }
+ return read_dev_sector(state->bdev, n, p);
+}
+
+static inline void
+put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
+{
+ if (n < p->limit) {
+ char tmp[1 + BDEVNAME_SIZE + 10 + 1];
+
+ p->parts[n].from = from;
+ p->parts[n].size = size;
+ snprintf(tmp, sizeof(tmp), " %s%d", p->name, n);
+ strlcat(p->pp_buf, tmp, PAGE_SIZE);
+ }
+}
+
+extern int warn_no_part;
+