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| author | Jens Axboe <jens.axboe@oracle.com> | 2008-10-24 11:22:42 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-24 19:22:38 +0400 |
| commit | e013e13bf605b9e6b702adffbe2853cfc60e7806 (patch) | |
| tree | f69ce0b35fa8df2447d06eee64f4f579b883e701 /fs/proc/uptime.c | |
| parent | 57f8f7b60db6f1ed2c6918ab9230c4623a9dbe37 (diff) | |
| download | linux-e013e13bf605b9e6b702adffbe2853cfc60e7806.tar.xz | |
libata: fix bug with non-ncq devices
The recent commit 2fca5ccf97d2c28bcfce44f5b07d85e74e3cd18e ("libata:
switch to using block layer tagging support") to enable support for
block layer tagging in libata was broken for non-NCQ devices
The block layer initializes the tag field to -1 to detect invalid uses
of a tag, and if the libata devices does NOT support NCQ, we just used
that field to index the internal command list. So we need to check for
-1 first and only use the tag field if it's valid.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Tested-by: Paul Mundt <lethal@linux-sh.org>
Tested-by: Dave Young <hidave.darkstar@gmail.com>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/uptime.c')
0 files changed, 0 insertions, 0 deletions