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author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2009-05-23 13:44:09 +0300 |
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committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2009-05-26 12:47:47 +0300 |
commit | ddbd3b61708483f73dbcc62a94d16cc7db928cba (patch) | |
tree | 7600caa289d1517e8642d6be21d0a0cfe88c40d5 /drivers/mtd/ubi/wl.c | |
parent | 95c9c1da79e59fd10ec5da3aeba22981383f7040 (diff) |
UBI: fix race condition
This patch fixes a minor problem where we may fail to wake
upe the UBI background thread. This is not fatal at all,
it may just result at sligtly worse performace for a short
period of time, just because the thread will be woken up
when real I/O on the UBI starts.
Anywey, the issue is the race condition between
'ubi_attach_mtd_dev()' and 'ubi_thread()'. If we do not
serialize them, the 'wake_up_process()' call may be done
before 'ubi_thread()' went seep, but after it checked
'ubi->thread_enabled'.
This issue was spotted by Shin Hong <hongshin@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/wl.c')
0 files changed, 0 insertions, 0 deletions