diff options
| author | Jeff Dike <jdike@addtoit.com> | 2007-07-15 23:38:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:39 -0700 |
| commit | 8619b86f20588c020b280e6f67a9b8712b1ee38a (patch) | |
| tree | fb4c1d31ba40eb6b380fdf0fe956848edf93760f /arch/um/drivers/xterm_kern.c | |
| parent | e8234483e7545b3cd298b0265fcee2e4a14c9f51 (diff) | |
uml: limit request size on COWed devices
COWed devices can't handle more than 32 (64 on x86_64) sectors in one request
due to the size of the bitmap being carried around in the io_thread_req.
Enforce that by telling the block layer not to put too many sectors in
requests to COWed devices.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/drivers/xterm_kern.c')
0 files changed, 0 insertions, 0 deletions