asgardius/android_kernel_motorola_sm6225
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[IA64] perfmon: fix async exit bug

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Move the cleanup of the async queue to the close callback from the flush
callback. This avoids losing asynchronous overflow notifications when
the file descriptor is shared by multiple processes and one terminates.

Signed-off-by: Stephane Eranian <eranian@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
stephane eranian 2008-06-11 15:24:13 -07:00 committed by Tony Luck
parent 28ffb5d3e0
commit 83014699b0
1 changed files with 5 additions and 5 deletions
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10
arch/ia64/kernel/perfmon.c
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@ -1864,11 +1864,6 @@ pfm_flush(struct file *filp, fl_owner_t id)
* invoked after, it will find an empty queue and no
* signal will be sent. In both case, we are safe
*/
if (filp->f_flags & FASYNC) {
DPRINT(("cleaning up async_queue=%p\n", ctx->ctx_async_queue));
pfm_do_fasync (-1, filp, ctx, 0);
}
PROTECT_CTX(ctx, flags);
state = ctx->ctx_state;
@ -1999,6 +1994,11 @@ pfm_close(struct inode *inode, struct file *filp)
return -EBADF;
}
if (filp->f_flags & FASYNC) {
DPRINT(("cleaning up async_queue=%p\n", ctx->ctx_async_queue));
pfm_do_fasync(-1, filp, ctx, 0);
}
PROTECT_CTX(ctx, flags);
state = ctx->ctx_state;