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Milan Broz ee86273062 loop: add some basic read-only sysfs attributes 
Create /sys/block/loopX/loop directory and provide these attributes:
 - backing_file
 - autoclear
 - offset
 - sizelimit

This loop directory is present only if loop device is configured.

To be used in util-linux-ng (and possibly elsewhere like udev rules)
where code need to get loop attributes from kernel (and not store
duplicate info in userspace).

Moreover loop ioctls are not even able to provide full backing
file info because of buffer limits.

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
 		2010-08-23 15:18:10 +02:00
..
aoe block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
drbd Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block 2010-08-10 15:22:42 -07:00
paride block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
DAC960.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
DAC960.h Fix DAC960 driver on machines which don't support 64-bit DMA 2007-09-11 17:21:19 -07:00
Kconfig paride: fix menu indentation 2010-05-11 09:02:55 +02:00
Makefile The DRBD driver 2009-10-01 21:17:49 +02:00
amiflop.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
ataflop.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
brd.c block: push down BKL into .locked_ioctl 2010-08-07 18:25:00 +02:00
cciss.c Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block 2010-08-10 15:22:42 -07:00
cciss.h cciss: use consistent variable names 2010-08-07 18:52:30 +02:00
cciss_cmd.h cciss: fix hard reset code. 2010-08-07 18:52:30 +02:00
cciss_scsi.c cciss: change printks to dev_warn, etc. 2010-08-07 18:52:30 +02:00
cciss_scsi.h cciss: remove C99-style comments 2010-02-22 13:44:45 +01:00
cpqarray.c cpqarray: check put_user() result 2010-08-07 18:53:03 +02:00
cpqarray.h
…
cryptoloop.c drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
floppy.c floppy: make controller const 2010-08-07 18:52:31 +02:00
hd.c block: remove wrappers for request type/flags 2010-08-07 18:17:56 +02:00
ida_cmd.h
…
ida_ioctl.h
…
loop.c loop: add some basic read-only sysfs attributes 2010-08-23 15:18:10 +02:00
mg_disk.c block: remove wrappers for request type/flags 2010-08-07 18:17:56 +02:00
nbd.c Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block 2010-08-10 15:22:42 -07:00
osdblk.c block: remove q->prepare_flush_fn completely 2010-08-07 18:24:15 +02:00
pktcdvd.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
ps3disk.c block: remove q->prepare_flush_fn completely 2010-08-07 18:24:15 +02:00
ps3vram.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
smart1,2.h
…
sunvdc.c block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
swim.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
swim3.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
swim_asm.S m68k: mac - Add SWIM floppy support 2009-03-26 21:15:27 +01:00
sx8.c block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
ub.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
umem.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
umem.h drivers/block/umem: trim trailing whitespace 2007-10-10 09:25:59 +02:00
viodasd.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
virtio_blk.c Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block 2010-08-10 15:22:42 -07:00
xd.c block: push down BKL into .locked_ioctl 2010-08-07 18:25:00 +02:00
xd.h [PATCH] switch xd 2008-10-21 07:48:11 -04:00
xen-blkfront.c Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block 2010-08-10 15:22:42 -07:00
xsysace.c of: fix missing headers for of_address_to_resource() in MTD and SysACE drivers 2010-08-17 13:16:47 -06:00
z2ram.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00