Eric Dumazet 047fe36052 splice: fix racy pipe->buffers uses ... Dave Jones reported a kernel BUG at mm/slub.c:3474! triggered by splice_shrink_spd() called from vmsplice_to_pipe() commit 35f3d14dbb (pipe: add support for shrinking and growing pipes) added capability to adjust pipe->buffers. Problem is some paths don't hold pipe mutex and assume pipe->buffers doesn't change for their duration. Fix this by adding nr_pages_max field in struct splice_pipe_desc, and use it in place of pipe->buffers where appropriate. splice_shrink_spd() loses its struct pipe_inode_info argument. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Tom Herbert <therbert@google.com> Cc: stable <stable@vger.kernel.org> # 2.6.35 Tested-by: Dave Jones <davej@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2012-06-13 21:16:42 +02:00
..
acpi
asm-generic	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-06-01 10:34:35 -07:00
crypto
drm	introduce SIZE_MAX	2012-05-31 17:49:26 -07:00
keys
linux	splice: fix racy pipe->buffers uses	2012-06-13 21:16:42 +02:00
math-emu
media	[media] patch for Asus My Cinema PS3-100 (1043:48cd)	2012-05-20 16:05:02 -03:00
memory
misc
mtd	UBI: amend commentaries WRT dtype	2012-05-20 20:25:59 +03:00
net	cipso: handle CIPSO options correctly when NetLabel is disabled	2012-06-01 14:18:29 -04:00
pcmcia
rdma	Merge branches 'core', 'cxgb4', 'ipath', 'iser', 'lockdep', 'mlx4', 'nes', 'ocrdma', 'qib' and 'raw-qp' into for-linus	2012-05-21 09:00:47 -07:00
rxrpc
scsi	[SCSI] fcoe, bnx2fc, libfcoe: SW FCoE and bnx2fc use FCoE Syfs	2012-05-23 09:43:13 +01:00
sound	ASoC: Last minute updates	2012-05-22 02:58:55 +02:00
target	target: Add MI_REPORT_TARGET_PGS ext. header + implict_trans_secs attribute	2012-05-17 00:45:58 -07:00
trace	mm: vmscan: remove reclaim_mode_t	2012-05-29 16:22:19 -07:00
video	fbdev updates for 3.5	2012-06-01 16:57:51 -07:00
xen	xen: do not map the same GSI twice in PVHVM guests.	2012-05-21 14:11:36 -04:00
Kbuild