linux_dsm_epyc7002/drivers/block
Sergey Senozhatsky 4ce321f574 zram: fix pool name truncation
zram_meta_alloc() constructs a pool name for zs_create_pool() call as

    snprintf(pool_name, sizeof(pool_name), "zram%d", device_id);

However, it defines pool name buffer to be only 8 bytes long (minus
trailing zero), which means that we can have only 1000 pool names: zram0
-- zram999.

With CONFIG_ZSMALLOC_STAT enabled an attempt to create a device zram1000
can fail if device zram100 already exists, because snprintf() will
truncate new pool name to zram100 and pass it debugfs_create_dir(),
causing:

  debugfs dir <zram100> creation failed
  zram: Error creating memory pool

... and so on.

Fix it by passing zram->disk->disk_name to zram_meta_alloc() instead of
divice_id.  We construct zram%d name earlier and keep it as a ->disk_name,
no need to snprintf() it again.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-14 15:56:32 -07:00
..
aoe
drbd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
mtip32xx mtip32xx: Fix accessing freed memory 2015-06-24 08:48:46 -06:00
paride Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
rsxx
xen-blkback Merge branch 'stable/for-jens-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 2015-07-27 11:58:41 -06:00
zram zram: fix pool name truncation 2015-08-14 15:56:32 -07:00
amiflop.c
ataflop.c
brd.c
cciss_cmd.h
cciss_scsi.c scsi: Do not set cmd_per_lun to 1 in the host template 2015-05-31 18:06:28 -07:00
cciss_scsi.h
cciss.c cciss: correct the non-resettable board list 2015-05-31 11:14:34 -07:00
cciss.h
cpqarray.c
cpqarray.h
cryptoloop.c
DAC960.c
DAC960.h
floppy.c
hd.c
ida_cmd.h
ida_ioctl.h
Kconfig libnvdimm, pmem: move pmem to drivers/nvdimm/ 2015-06-24 21:24:10 -04:00
loop.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
loop.h block: loop: don't hold lo_ctl_mutex in lo_open 2015-05-20 09:06:09 -06:00
Makefile libnvdimm, pmem: move pmem to drivers/nvdimm/ 2015-06-24 21:24:10 -04:00
mg_disk.c
nbd.c block: nbd: convert to blkdev_reread_part() 2015-05-20 09:06:13 -06:00
null_blk.c null_blk: fix use-after-free problem 2015-07-22 13:30:20 -06:00
nvme-core.c NVMe: Reread partitions on metadata formats 2015-07-15 15:36:47 -06:00
nvme-scsi.c Merge branch 'for-4.2/drivers' of git://git.kernel.dk/linux-block 2015-06-25 15:12:50 -07:00
osdblk.c
pktcdvd.c writeback: separate out include/linux/backing-dev-defs.h 2015-06-02 08:33:34 -06:00
ps3disk.c
ps3vram.c block/ps3vram: Remove obsolete reference to MTD 2015-06-10 14:06:55 -06:00
rbd_types.h
rbd.c rbd: fix copyup completion race 2015-07-31 11:38:57 +03:00
skd_main.c
skd_s1120.h
smart1,2.h
sunvdc.c
swim3.c
swim_asm.S
swim.c
sx8.c block: rename REQ_TYPE_SPECIAL to REQ_TYPE_DRV_PRIV 2015-05-05 13:40:03 -06:00
umem.c
umem.h
virtio_blk.c block: rename REQ_TYPE_SPECIAL to REQ_TYPE_DRV_PRIV 2015-05-05 13:40:03 -06:00
xen-blkfront.c Merge branch 'stable/for-jens-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 2015-07-27 11:58:41 -06:00
xsysace.c
z2ram.c