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Rebase 4.14.48 patches onto 4.14.49 #197
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This enables relocating source and build trees to different roots, provided they stay reachable relative to one another. Useful for builds done within a sandbox where the eventual root is prefixed by some undesirable path component.
Signed-off-by: Geoff Levand <[email protected]>
blkdev_issue_zeroout() will use this in !BLKDEV_ZERO_NOFALLBACK case. Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
sd_config_write_same() ignores ->max_ws_blocks == 0 and resets it to permit trying WRITE SAME on older SCSI devices, unless ->no_write_same is set. Because REQ_OP_WRITE_ZEROES is implemented in terms of WRITE SAME, blkdev_issue_zeroout() may fail with -EREMOTEIO: $ fallocate -zn -l 1k /dev/sdg fallocate: fallocate failed: Remote I/O error $ fallocate -zn -l 1k /dev/sdg # OK $ fallocate -zn -l 1k /dev/sdg # OK The following calls succeed because sd_done() sets ->no_write_same in response to a sense that would become BLK_STS_TARGET/-EREMOTEIO, causing __blkdev_issue_zeroout() to fall back to generating ZERO_PAGE bios. This means blkdev_issue_zeroout() must cope with WRITE ZEROES failing and fall back to manually zeroing, unless BLKDEV_ZERO_NOFALLBACK is specified. For BLKDEV_ZERO_NOFALLBACK case, return -EOPNOTSUPP if sd_done() has just set ->no_write_same thus indicating lack of offload support. Fixes: c20cfc2 ("block: stop using blkdev_issue_write_same for zeroing") Cc: Hannes Reinecke <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
…mness()" This reverts commit 7b6b1f3.
This reverts commit 6e513bc.
This reverts commit 70f3461. This causes failures to set mtu > 1500 on some aws instances.
Recently people reported the NIC stops working after "ifdown eth0; ifup eth0". It turns out in this case the TX queues are not enabled, after the refactoring of the common detach logic: when the NIC has sub-channels, usually we enable all the TX queues after all sub-channels are set up: see rndis_set_subchannel() -> netif_device_attach(), but in the case of "ifdown eth0; ifup eth0" where the number of channels doesn't change, we also must make sure the TX queues are enabled. The patch fixes the regression. Fixes: 7b2ee50 ("hv_netvsc: common detach logic") Signed-off-by: Dexuan Cui <[email protected]> Cc: Stephen Hemminger <[email protected]> Cc: K. Y. Srinivasan <[email protected]> Cc: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
bgilbert
approved these changes
Jun 11, 2018
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