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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2011-07-19 19:49:25 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-20 09:09:30 +0400 |
| commit | f7b88631a89757d70192044c9d9f2e8d2fc02f2c (patch) | |
| tree | 51da597d7625d2428701be146f233cee047425d9 /Documentation/md.txt | |
| parent | e501f29c727dea74e2124c584cbab5fa805d489b (diff) | |
| download | linux-f7b88631a89757d70192044c9d9f2e8d2fc02f2c.tar.xz | |
fs/libfs.c: fix simple_attr_write() on 32bit machines
Assume that /sys/kernel/debug/dummy64 is debugfs file created by
debugfs_create_x64().
# cd /sys/kernel/debug
# echo 0x1234567812345678 > dummy64
# cat dummy64
0x0000000012345678
# echo 0x80000000 > dummy64
# cat dummy64
0xffffffff80000000
A value larger than INT_MAX cannot be written to the debugfs file created
by debugfs_create_u64 or debugfs_create_x64 on 32bit machine. Because
simple_attr_write() uses simple_strtol() for the conversion.
To fix this, use simple_strtoll() instead.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/md.txt')
0 files changed, 0 insertions, 0 deletions