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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-13 19:20:41 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-13 19:20:41 +0200
commit80a0d644d37296d7cac1a4956cb4e916770083e0 (patch)
tree9571808cfbe611496e7d7957504e78a61bc77cd4 /include
parentMerge tag 'docs-4.14' of git://git.lwn.net/linux (diff)
parentblock: directly insert blk-mq request from blk_insert_cloned_request() (diff)
downloadlinux-80a0d644d37296d7cac1a4956cb4e916770083e0.tar.xz
linux-80a0d644d37296d7cac1a4956cb4e916770083e0.zip
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe: "Small collection of fixes that would be nice to have in -rc1. This contains: - NVMe pull request form Christoph, mostly with fixes for nvme-pci, host memory buffer in particular. - Error handling fixup for cgwb_create(), in case allocation of 'wb' fails. From Christophe Jaillet. - Ensure that trace_block_getrq() gets the 'dev' in an appropriate fashion, to avoid a potential NULL deref. From Greg Thelen. - Regression fix for dm-mq with blk-mq, fixing a problem with stacking IO schedulers. From me. - string.h fixup, fixing an issue with memcpy_and_pad(). This original change came in through an NVMe dependency, which is why I'm including it here. From Martin Wilck. - Fix potential int overflow in __blkdev_sectors_to_bio_pages(), from Mikulas. - MBR enable fix for sed-opal, from Scott" * 'for-linus' of git://git.kernel.dk/linux-block: block: directly insert blk-mq request from blk_insert_cloned_request() mm/backing-dev.c: fix an error handling path in 'cgwb_create()' string.h: un-fortify memcpy_and_pad nvme-pci: implement the HMB entry number and size limitations nvme-pci: propagate (some) errors from host memory buffer setup nvme-pci: use appropriate initial chunk size for HMB allocation nvme-pci: fix host memory buffer allocation fallback nvme: fix lightnvm check block: fix integer overflow in __blkdev_sectors_to_bio_pages() block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled block: tolerate tracing of NULL bio
Diffstat (limited to 'include')
-rw-r--r--include/linux/nvme.h4
-rw-r--r--include/linux/string.h15
-rw-r--r--include/trace/events/block.h5
3 files changed, 7 insertions, 17 deletions
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 5144f9103723..87723c86f136 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -226,7 +226,9 @@ struct nvme_id_ctrl {
__le16 mntmt;
__le16 mxtmt;
__le32 sanicap;
- __u8 rsvd332[180];
+ __le32 hmminds;
+ __le16 hmmaxd;
+ __u8 rsvd338[174];
__u8 sqes;
__u8 cqes;
__le16 maxcmd;
diff --git a/include/linux/string.h b/include/linux/string.h
index e1eeb0a8a969..54d21783e18d 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -434,20 +434,9 @@ __FORTIFY_INLINE char *strcpy(char *p, const char *q)
* @count: The number of bytes to copy
* @pad: Character to use for padding if space is left in destination.
*/
-__FORTIFY_INLINE void memcpy_and_pad(void *dest, size_t dest_len,
- const void *src, size_t count, int pad)
+static inline void memcpy_and_pad(void *dest, size_t dest_len,
+ const void *src, size_t count, int pad)
{
- size_t dest_size = __builtin_object_size(dest, 0);
- size_t src_size = __builtin_object_size(src, 0);
-
- if (__builtin_constant_p(dest_len) && __builtin_constant_p(count)) {
- if (dest_size < dest_len && dest_size < count)
- __write_overflow();
- else if (src_size < dest_len && src_size < count)
- __read_overflow3();
- }
- if (dest_size < dest_len)
- fortify_panic(__func__);
if (dest_len > count) {
memcpy(dest, src, count);
memset(dest + count, pad, dest_len - count);
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index f815aaaef755..1fd7ff1a46f7 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -397,7 +397,6 @@ DECLARE_EVENT_CLASS(block_get_rq,
TP_fast_assign(
__entry->dev = bio ? bio_dev(bio) : 0;
- __entry->dev = bio_dev(bio);
__entry->sector = bio ? bio->bi_iter.bi_sector : 0;
__entry->nr_sector = bio ? bio_sectors(bio) : 0;
blk_fill_rwbs(__entry->rwbs,
@@ -414,7 +413,7 @@ DECLARE_EVENT_CLASS(block_get_rq,
/**
* block_getrq - get a free request entry in queue for block IO operations
* @q: queue for operations
- * @bio: pending block IO operation
+ * @bio: pending block IO operation (can be %NULL)
* @rw: low bit indicates a read (%0) or a write (%1)
*
* A request struct for queue @q has been allocated to handle the
@@ -430,7 +429,7 @@ DEFINE_EVENT(block_get_rq, block_getrq,
/**
* block_sleeprq - waiting to get a free request entry in queue for block IO operation
* @q: queue for operation
- * @bio: pending block IO operation
+ * @bio: pending block IO operation (can be %NULL)
* @rw: low bit indicates a read (%0) or a write (%1)
*
* In the case where a request struct cannot be provided for queue @q