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authorJens Axboe <jaxboe@fusionio.com>2010-11-16 10:09:42 +0100
committerJens Axboe <jaxboe@fusionio.com>2010-11-16 10:09:42 +0100
commita02056349cdea2252cd2b21643ebf025e83a29f2 (patch)
treeb7c889d6cbe8e7188d07d99a5c9da858c53a5b6c /fs/partitions
parent34db1d595ef6f183fbc1e42cda45a3dfa0035258 (diff)
parente53beacd23d9cb47590da6a7a7f6d417b941a994 (diff)
downloadop-kernel-dev-a02056349cdea2252cd2b21643ebf025e83a29f2.zip
op-kernel-dev-a02056349cdea2252cd2b21643ebf025e83a29f2.tar.gz
Merge branch 'v2.6.37-rc2' into for-2.6.38/core
Diffstat (limited to 'fs/partitions')
-rw-r--r--fs/partitions/check.c42
-rw-r--r--fs/partitions/check.h3
-rw-r--r--fs/partitions/efi.c25
-rw-r--r--fs/partitions/ldm.c2
-rw-r--r--fs/partitions/ldm.h2
5 files changed, 59 insertions, 15 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 861ae84..12213f7 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -361,6 +361,7 @@ static void part_release(struct device *dev)
{
struct hd_struct *p = dev_to_part(dev);
free_part_stats(p);
+ free_part_info(p);
kfree(p);
}
@@ -410,7 +411,8 @@ static DEVICE_ATTR(whole_disk, S_IRUSR | S_IRGRP | S_IROTH,
whole_disk_show, NULL);
struct hd_struct *add_partition(struct gendisk *disk, int partno,
- sector_t start, sector_t len, int flags)
+ sector_t start, sector_t len, int flags,
+ struct partition_meta_info *info)
{
struct hd_struct *p;
dev_t devt = MKDEV(0, 0);
@@ -447,6 +449,14 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
p->partno = partno;
p->policy = get_disk_ro(disk);
+ if (info) {
+ struct partition_meta_info *pinfo = alloc_part_info(disk);
+ if (!pinfo)
+ goto out_free_stats;
+ memcpy(pinfo, info, sizeof(*info));
+ p->info = pinfo;
+ }
+
dname = dev_name(ddev);
if (isdigit(dname[strlen(dname) - 1]))
dev_set_name(pdev, "%sp%d", dname, partno);
@@ -460,7 +470,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
err = blk_alloc_devt(p, &devt);
if (err)
- goto out_free_stats;
+ goto out_free_info;
pdev->devt = devt;
/* delay uevent until 'holders' subdir is created */
@@ -490,6 +500,8 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
return p;
+out_free_info:
+ free_part_info(p);
out_free_stats:
free_part_stats(p);
out_free:
@@ -522,14 +534,14 @@ void register_disk(struct gendisk *disk)
if (device_add(ddev))
return;
-#ifndef CONFIG_SYSFS_DEPRECATED
- err = sysfs_create_link(block_depr, &ddev->kobj,
- kobject_name(&ddev->kobj));
- if (err) {
- device_del(ddev);
- return;
+ if (!sysfs_deprecated) {
+ err = sysfs_create_link(block_depr, &ddev->kobj,
+ kobject_name(&ddev->kobj));
+ if (err) {
+ device_del(ddev);
+ return;
+ }
}
-#endif
disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj);
disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
@@ -651,6 +663,7 @@ rescan:
/* add partitions */
for (p = 1; p < state->limit; p++) {
sector_t size, from;
+ struct partition_meta_info *info = NULL;
size = state->parts[p].size;
if (!size)
@@ -684,8 +697,12 @@ rescan:
size = get_capacity(disk) - from;
}
}
+
+ if (state->parts[p].has_info)
+ info = &state->parts[p].info;
part = add_partition(disk, p, from, size,
- state->parts[p].flags);
+ state->parts[p].flags,
+ &state->parts[p].info);
if (IS_ERR(part)) {
printk(KERN_ERR " %s: p%d could not be added: %ld\n",
disk->disk_name, p, -PTR_ERR(part));
@@ -746,8 +763,7 @@ void del_gendisk(struct gendisk *disk)
kobject_put(disk->part0.holder_dir);
kobject_put(disk->slave_dir);
disk->driverfs_dev = NULL;
-#ifndef CONFIG_SYSFS_DEPRECATED
- sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
-#endif
+ if (!sysfs_deprecated)
+ sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
device_del(disk_to_dev(disk));
}
diff --git a/fs/partitions/check.h b/fs/partitions/check.h
index 8e4e103..d68bf4d 100644
--- a/fs/partitions/check.h
+++ b/fs/partitions/check.h
@@ -1,5 +1,6 @@
#include <linux/pagemap.h>
#include <linux/blkdev.h>
+#include <linux/genhd.h>
/*
* add_gd_partition adds a partitions details to the devices partition
@@ -12,6 +13,8 @@ struct parsed_partitions {
sector_t from;
sector_t size;
int flags;
+ bool has_info;
+ struct partition_meta_info info;
} parts[DISK_MAX_PARTS];
int next;
int limit;
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c
index dbb44d4..ac0ccb5 100644
--- a/fs/partitions/efi.c
+++ b/fs/partitions/efi.c
@@ -94,6 +94,7 @@
*
************************************************************/
#include <linux/crc32.h>
+#include <linux/ctype.h>
#include <linux/math64.h>
#include <linux/slab.h>
#include "check.h"
@@ -604,6 +605,7 @@ int efi_partition(struct parsed_partitions *state)
gpt_entry *ptes = NULL;
u32 i;
unsigned ssz = bdev_logical_block_size(state->bdev) / 512;
+ u8 unparsed_guid[37];
if (!find_valid_gpt(state, &gpt, &ptes) || !gpt || !ptes) {
kfree(gpt);
@@ -614,6 +616,9 @@ int efi_partition(struct parsed_partitions *state)
pr_debug("GUID Partition Table is valid! Yea!\n");
for (i = 0; i < le32_to_cpu(gpt->num_partition_entries) && i < state->limit-1; i++) {
+ struct partition_meta_info *info;
+ unsigned label_count = 0;
+ unsigned label_max;
u64 start = le64_to_cpu(ptes[i].starting_lba);
u64 size = le64_to_cpu(ptes[i].ending_lba) -
le64_to_cpu(ptes[i].starting_lba) + 1ULL;
@@ -627,6 +632,26 @@ int efi_partition(struct parsed_partitions *state)
if (!efi_guidcmp(ptes[i].partition_type_guid,
PARTITION_LINUX_RAID_GUID))
state->parts[i + 1].flags = ADDPART_FLAG_RAID;
+
+ info = &state->parts[i + 1].info;
+ /* Instead of doing a manual swap to big endian, reuse the
+ * common ASCII hex format as the interim.
+ */
+ efi_guid_unparse(&ptes[i].unique_partition_guid, unparsed_guid);
+ part_pack_uuid(unparsed_guid, info->uuid);
+
+ /* Naively convert UTF16-LE to 7 bits. */
+ label_max = min(sizeof(info->volname) - 1,
+ sizeof(ptes[i].partition_name));
+ info->volname[label_max] = 0;
+ while (label_count < label_max) {
+ u8 c = ptes[i].partition_name[label_count] & 0xff;
+ if (c && !isprint(c))
+ c = '!';
+ info->volname[label_count] = c;
+ label_count++;
+ }
+ state->parts[i + 1].has_info = true;
}
kfree(ptes);
kfree(gpt);
diff --git a/fs/partitions/ldm.c b/fs/partitions/ldm.c
index 5bf8a04..789c625 100644
--- a/fs/partitions/ldm.c
+++ b/fs/partitions/ldm.c
@@ -5,7 +5,7 @@
* Copyright (c) 2001-2007 Anton Altaparmakov
* Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
*
- * Documentation is available at http://www.linux-ntfs.org/content/view/19/37/
+ * Documentation is available at http://www.linux-ntfs.org/doku.php?id=downloads
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
diff --git a/fs/partitions/ldm.h b/fs/partitions/ldm.h
index d1fb50b..374242c 100644
--- a/fs/partitions/ldm.h
+++ b/fs/partitions/ldm.h
@@ -5,7 +5,7 @@
* Copyright (c) 2001-2007 Anton Altaparmakov
* Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
*
- * Documentation is available at http://www.linux-ntfs.org/content/view/19/37/
+ * Documentation is available at http://www.linux-ntfs.org/doku.php?id=downloads
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
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