kernel/linux.git, branch v3.14.77

Linux 3.14.77

2016-08-20T09:53:43+00:00

Documentation/module-signing.txt: Note need for version info if reusing a key

2016-08-20T09:53:23+00:00

commit b8612e517c3c9809e1200b72c474dbfd969e5a83 upstream. Signing a module should only make it trusted by the specific kernel it was built for, not anything else. If a module signing key is used for multiple ABI-incompatible kernels, the modules need to include enough version information to distinguish them. Signed-off-by: Ben Hutchings Signed-off-by: Rusty Russell Signed-off-by: Greg Kroah-Hartman

module: Invalidate signatures on force-loaded modules

2016-08-20T09:53:23+00:00

commit bca014caaa6130e57f69b5bf527967aa8ee70fdd upstream. Signing a module should only make it trusted by the specific kernel it was built for, not anything else. Loading a signed module meant for a kernel with a different ABI could have interesting effects. Therefore, treat all signatures as invalid when a module is force-loaded. Signed-off-by: Ben Hutchings Signed-off-by: Rusty Russell Signed-off-by: Greg Kroah-Hartman

dm flakey: error READ bios during the down_interval

2016-08-20T09:53:23+00:00

commit 99f3c90d0d85708e7401a81ce3314e50bf7f2819 upstream. When the corrupt_bio_byte feature was introduced it caused READ bios to no longer be errored with -EIO during the down_interval. This had to do with the complexity of needing to submit READs if the corrupt_bio_byte feature was used. Fix it so READ bios are properly errored with -EIO; doing so early in flakey_map() as long as there isn't a match for the corrupt_bio_byte feature. Fixes: a3998799fb4df ("dm flakey: add corrupt_bio_byte feature") Reported-by: Akira Hayakawa Signed-off-by: Mike Snitzer Signed-off-by: Greg Kroah-Hartman

PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset

2016-08-20T09:53:22+00:00

commit 9ac0108c2bac3f1d0255f64fb89fc27e71131b24 upstream. Similar to the AR93xx series, the AR94xx and the Qualcomm QCA988x also have the same quirk for the Bus Reset. Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset") Signed-off-by: Chris Blake Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman

target: Fix max_unmap_lba_count calc overflow

2016-08-20T09:53:22+00:00

commit ea263c7fada4af8ec7fe5fcfd6e7d7705a89351b upstream. max_discard_sectors only 32bits, and some non scsi backend devices will set this to the max 0xffffffff, so we can end up overflowing during the max_unmap_lba_count calculation. This fixes a regression caused by my patch: commit 8a9ebe717a133ba7bc90b06047f43cc6b8bcb8b3 Author: Mike Christie Date: Mon Jan 18 14:09:27 2016 -0600 target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors which can result in extra discards being sent to due the overflow causing max_unmap_lba_count to be smaller than what the backing device can actually support. Signed-off-by: Mike Christie Reviewed-by: Bart Van Assche Signed-off-by: Nicholas Bellinger Signed-off-by: Greg Kroah-Hartman

target: Fix race between iscsi-target connection shutdown + ABORT_TASK

2016-08-20T09:53:22+00:00

commit 064cdd2d91c2805d788876082f31cc63506f22c3 upstream. This patch fixes a race in iscsit_release_commands_from_conn() -> iscsit_free_cmd() -> transport_generic_free_cmd() + wait_for_tasks=1, where CMD_T_FABRIC_STOP could end up being set after the final kref_put() is called from core_tmr_abort_task() context. This results in transport_generic_free_cmd() blocking indefinately on se_cmd->cmd_wait_comp, because the target_release_cmd_kref() check for CMD_T_FABRIC_STOP returns false. To address this bug, make iscsit_release_commands_from_conn() do list_splice and set CMD_T_FABRIC_STOP early while holding iscsi_conn->cmd_lock. Also make iscsit_aborted_task() only remove iscsi_cmd_t if CMD_T_FABRIC_STOP has not already been set. Finally in target_release_cmd_kref(), only honor fabric_stop if CMD_T_ABORTED has been set. Cc: Mike Christie Cc: Quinn Tran Cc: Himanshu Madhani Cc: Christoph Hellwig Cc: Hannes Reinecke Tested-by: Nicholas Bellinger Signed-off-by: Nicholas Bellinger Signed-off-by: Greg Kroah-Hartman

ubi: Fix race condition between ubi device creation and udev

2016-08-20T09:53:22+00:00

commit 714fb87e8bc05ff78255afc0dca981e8c5242785 upstream. Install the UBI device object before we arm sysfs. Otherwise udev tries to read sysfs attributes before UBI is ready and udev rules will not match. Signed-off-by: Iosif Harutyunov [rw: massaged commit message] Signed-off-by: Richard Weinberger Signed-off-by: Greg Kroah-Hartman

ubi: Make volume resize power cut aware

2016-08-20T09:53:22+00:00

commit 4946784bd3924b1374f05eebff2fd68660bae866 upstream. When the volume resize operation shrinks a volume, LEBs will be unmapped. Since unmapping will not erase these LEBs immediately we have to wait for that operation to finish. Otherwise in case of a power cut right after writing the new volume table the UBI attach process can find more LEBs than the volume table knows. This will render the UBI image unattachable. Fix this issue by waiting for erase to complete and write the new volume table afterward. Reported-by: Boris Brezillon Reviewed-by: Boris Brezillon Signed-off-by: Richard Weinberger Signed-off-by: Greg Kroah-Hartman

IB/mlx4: Fix the SQ size of an RC QP

2016-08-20T09:53:22+00:00

commit f2940e2c76bb554a7fbdd28ca5b90904117a9e96 upstream. When calculating the required size of an RC QP send queue, leave enough space for masked atomic operations, which require more space than "regular" atomic operation. Fixes: 6fa8f719844b ("IB/mlx4: Add support for masked atomic operations") Signed-off-by: Yishai Hadas Reviewed-by: Jack Morgenstein Reviewed-by: Eran Ben Elisha Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman