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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-07-18 10:36:11 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-07-18 10:36:11 -0300 |
| commit | 0698461ad2984892a47582a58eb235488d3aac7f (patch) | |
| tree | 107cfefee20b50f79cde3ed847f075bdbf50fad0 /arch/s390/kernel/crash_dump.c | |
| parent | 0d2997f750d1de394231bc22768dab94a5b5db2f (diff) | |
| parent | ff6992735ade75aae3e35d16b17da1008d753d28 (diff) | |
| download | linux-stable-0698461ad2984892a47582a58eb235488d3aac7f.tar.gz linux-stable-0698461ad2984892a47582a58eb235488d3aac7f.tar.bz2 linux-stable-0698461ad2984892a47582a58eb235488d3aac7f.zip | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To update the perf/core codebase.
Fix conflict by moving arch__post_evsel_config(evsel, attr) to the end
of evsel__config(), after what was added in:
49c692b7dfc9b6c0 ("perf offcpu: Accept allowed sample types only")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/s390/kernel/crash_dump.c')
| -rw-r--r-- | arch/s390/kernel/crash_dump.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c index a2c1c55daec0..28124d0fa1d5 100644 --- a/arch/s390/kernel/crash_dump.c +++ b/arch/s390/kernel/crash_dump.c @@ -219,6 +219,11 @@ ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn, size_t csize, unsigned long src; int rc; + if (!(iter_is_iovec(iter) || iov_iter_is_kvec(iter))) + return -EINVAL; + /* Multi-segment iterators are not supported */ + if (iter->nr_segs > 1) + return -EINVAL; if (!csize) return 0; src = pfn_to_phys(pfn) + offset; @@ -228,7 +233,10 @@ ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn, size_t csize, rc = copy_oldmem_user(iter->iov->iov_base, src, csize); else rc = copy_oldmem_kernel(iter->kvec->iov_base, src, csize); - return rc; + if (rc < 0) + return rc; + iov_iter_advance(iter, csize); + return csize; } /* |