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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-28 04:58:09 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-28 04:58:09 (GMT) |
commit | 2a7d2b96d5cba7568139d9ab157a0e97ab32440f (patch) | |
tree | ad029d8cc7b7068b7250e914360ec6315fdfa114 /drivers/block/drbd/drbd_main.c | |
parent | e3c4877de8b9d93bd47b6ee88eb594b1c1e10da5 (diff) | |
parent | b67bfe0d42cac56c512dd5da4b1b347a23f4b70a (diff) | |
download | linux-2a7d2b96d5cba7568139d9ab157a0e97ab32440f.tar.xz |
Merge branch 'akpm' (final batch from Andrew)
Merge third patch-bumb from Andrew Morton:
"This wraps me up for -rc1.
- Lots of misc stuff and things which were deferred/missed from
patchbombings 1 & 2.
- ocfs2 things
- lib/scatterlist
- hfsplus
- fatfs
- documentation
- signals
- procfs
- lockdep
- coredump
- seqfile core
- kexec
- Tejun's large IDR tree reworkings
- ipmi
- partitions
- nbd
- random() things
- kfifo
- tools/testing/selftests updates
- Sasha's large and pointless hlist cleanup"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (163 commits)
hlist: drop the node parameter from iterators
kcmp: make it depend on CHECKPOINT_RESTORE
selftests: add a simple doc
tools/testing/selftests/Makefile: rearrange targets
selftests/efivarfs: add create-read test
selftests/efivarfs: add empty file creation test
selftests: add tests for efivarfs
kfifo: fix kfifo_alloc() and kfifo_init()
kfifo: move kfifo.c from kernel/ to lib/
arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS
w1: add support for DS2413 Dual Channel Addressable Switch
memstick: move the dereference below the NULL test
drivers/pps/clients/pps-gpio.c: use devm_kzalloc
Documentation/DMA-API-HOWTO.txt: fix typo
include/linux/eventfd.h: fix incorrect filename is a comment
mtd: mtd_stresstest: use prandom_bytes()
mtd: mtd_subpagetest: convert to use prandom library
mtd: mtd_speedtest: use prandom_bytes
mtd: mtd_pagetest: convert to use prandom library
mtd: mtd_oobtest: convert to use prandom library
...
Diffstat (limited to 'drivers/block/drbd/drbd_main.c')
-rw-r--r-- | drivers/block/drbd/drbd_main.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 8c13eeb..e98da67 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2660,25 +2660,24 @@ enum drbd_ret_code conn_new_minor(struct drbd_tconn *tconn, unsigned int minor, mdev->read_requests = RB_ROOT; mdev->write_requests = RB_ROOT; - if (!idr_pre_get(&minors, GFP_KERNEL)) - goto out_no_minor_idr; - if (idr_get_new_above(&minors, mdev, minor, &minor_got)) + minor_got = idr_alloc(&minors, mdev, minor, minor + 1, GFP_KERNEL); + if (minor_got < 0) { + if (minor_got == -ENOSPC) { + err = ERR_MINOR_EXISTS; + drbd_msg_put_info("requested minor exists already"); + } goto out_no_minor_idr; - if (minor_got != minor) { - err = ERR_MINOR_EXISTS; - drbd_msg_put_info("requested minor exists already"); - goto out_idr_remove_minor; } - if (!idr_pre_get(&tconn->volumes, GFP_KERNEL)) - goto out_idr_remove_minor; - if (idr_get_new_above(&tconn->volumes, mdev, vnr, &vnr_got)) + vnr_got = idr_alloc(&tconn->volumes, mdev, vnr, vnr + 1, GFP_KERNEL); + if (vnr_got < 0) { + if (vnr_got == -ENOSPC) { + err = ERR_INVALID_REQUEST; + drbd_msg_put_info("requested volume exists already"); + } goto out_idr_remove_minor; - if (vnr_got != vnr) { - err = ERR_INVALID_REQUEST; - drbd_msg_put_info("requested volume exists already"); - goto out_idr_remove_vol; } + add_disk(disk); kref_init(&mdev->kref); /* one ref for both idrs and the the add_disk */ @@ -2689,8 +2688,6 @@ enum drbd_ret_code conn_new_minor(struct drbd_tconn *tconn, unsigned int minor, return NO_ERROR; -out_idr_remove_vol: - idr_remove(&tconn->volumes, vnr_got); out_idr_remove_minor: idr_remove(&minors, minor_got); synchronize_rcu(); |