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authorDavide Libenzi <davidel@xmailserver.org>2008-04-10 21:29:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-11 08:06:43 -0700
commit8d1c98b0b5c0148b519c6416e689ef6a89ffcea3 (patch)
tree904c70d4ed15dd79a003c34bad2e25cff9522420 /drivers/usb/gadget/m66592-udc.c
parentd479540dbaba6f7acdb48e0242fee868c7a68116 (diff)
eventfd/kaio integration fix
Jeff Roberson discovered a race when using kaio eventfd based notifications. When it occurs it can lead tomissed wakeups and hung userspace. This patch fixes the race by moving the notification inside the spinlocked section of kaio. The operation is safe since eventfd spinlock and kaio one are unrelated. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Cc: Zach Brown <zach.brown@oracle.com> Cc: Jeff Roberson <jroberson@chesapeake.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/usb/gadget/m66592-udc.c')
0 files changed, 0 insertions, 0 deletions

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