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irmap: Properly compare stat vs proc devices

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The s_dev value we see in irmap is get from proc file and is
raw kernel dev_t. We compare this value to the device get from
stat syscall, which is old-style dev_t (with less bits for minor).

Thus, need to convert kernel dev_t to stat's dev_t for proper
comparison.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov 2014-03-06 15:14:04 +04:00
parent edde5fb461
commit 9db426a7cd
1 changed files with 2 additions and 0 deletions
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2
irmap.c
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@ -212,6 +212,8 @@ char *irmap_lookup(unsigned int s_dev, unsigned long i_ino)
char *path = NULL;
int hv;
s_dev = kdev_to_odev(s_dev);
pr_debug("Resolving %x:%lx path\n", s_dev, i_ino);
timing_start(TIME_IRMAP_RESOLVE);