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| author | Ingo Molnar <mingo@kernel.org> | 2016-03-07 11:27:30 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-03-07 11:27:30 +0300 |
| commit | ec87e1cf7d8399d81d8965c6d852f8057a8dd687 (patch) | |
| tree | 472a168fa4861090edf110c8a9712a5c15ea259f /block/bio.c | |
| parent | 869ae76147ffdf21ad24f0e599303cd58a2bb39f (diff) | |
| parent | f6cede5b49e822ebc41a099fe41ab4989f64e2cb (diff) | |
| download | linux-ec87e1cf7d8399d81d8965c6d852f8057a8dd687.tar.xz | |
Merge tag 'v4.5-rc7' into x86/asm, to pick up SMAP fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/block/bio.c b/block/bio.c index dbabd48b1934..cf7591551b17 100644 --- a/block/bio.c +++ b/block/bio.c @@ -874,7 +874,7 @@ int submit_bio_wait(int rw, struct bio *bio) bio->bi_private = &ret; bio->bi_end_io = submit_bio_wait_endio; submit_bio(rw, bio); - wait_for_completion(&ret.event); + wait_for_completion_io(&ret.event); return ret.error; } @@ -1090,9 +1090,12 @@ int bio_uncopy_user(struct bio *bio) if (!bio_flagged(bio, BIO_NULL_MAPPED)) { /* * if we're in a workqueue, the request is orphaned, so - * don't copy into a random user address space, just free. + * don't copy into a random user address space, just free + * and return -EINTR so user space doesn't expect any data. */ - if (current->mm && bio_data_dir(bio) == READ) + if (!current->mm) + ret = -EINTR; + else if (bio_data_dir(bio) == READ) ret = bio_copy_to_iter(bio, bmd->iter); if (bmd->is_our_pages) bio_free_pages(bio); |