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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2015-04-13 17:21:56 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-04-16 08:47:23 +0300 |
| commit | 38da0f49e8aa1649af397d53f88e163d0e60c058 (patch) | |
| tree | f1167920d1805849409cc9d71805b12c6cb560ea /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | dc0fafdab88b98581728a574885d0e4d9c6d0640 (diff) | |
| download | linux-38da0f49e8aa1649af397d53f88e163d0e60c058.tar.xz | |
target/file: Fix BUG() when CONFIG_DEBUG_SG=y and DIF protection enabled
When CONFIG_DEBUG_SG=y and DIF protection support enabled, kernel
BUG()s are triggered due to the following two issues:
1) prot_sg is not initialized by sg_init_table().
When CONFIG_DEBUG_SG=y, scatterlist helpers check sg entry has a
correct magic value.
2) vmalloc'ed buffer is passed to sg_set_buf().
sg_set_buf() uses virt_to_page() to convert virtual address to struct
page, but it doesn't work with vmalloc address. vmalloc_to_page()
should be used instead. As prot_buf isn't usually too large, so
fix it by allocating prot_buf by kmalloc instead of vmalloc.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: <stable@vger.kernel.org> # v3.14+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions