diff options
| author | Shaohua Li <shli@kernel.org> | 2012-03-22 03:34:17 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-22 04:55:00 +0400 |
| commit | 052b1987faca3606109d88d96bce124851f7c4c2 (patch) | |
| tree | 879df883edb01ea6e0da880e391b06bb69058129 /kernel | |
| parent | 1480de0340a8d5f094b74d7c4b902456c9a06903 (diff) | |
| download | linux-052b1987faca3606109d88d96bce124851f7c4c2.tar.xz | |
swap: don't do discard if no discard option added
When swapon() was not passed the SWAP_FLAG_DISCARD option, sys_swapon()
will still perform a discard operation. This can cause problems if
discard is slow or buggy.
Reverse the order of the check so that a discard operation is performed
only if the sys_swapon() caller is attempting to enable discard.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Reported-by: Holger Kiehl <Holger.Kiehl@dwd.de>
Tested-by: Holger Kiehl <Holger.Kiehl@dwd.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions