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| author | alfred <alfred@FreeBSD.org> | 2002-02-01 19:19:54 +0000 |
|---|---|---|
| committer | alfred <alfred@FreeBSD.org> | 2002-02-01 19:19:54 +0000 |
| commit | 74f44e9118c6128d583e17eb9c7f6c28741e03b6 (patch) | |
| tree | 635009af09bc818e07f437d6a56351ec5feeefdc /sys | |
| parent | 71e646a649dd50023e82b1da036ba3d3864f6cba (diff) | |
| download | FreeBSD-src-74f44e9118c6128d583e17eb9c7f6c28741e03b6.zip FreeBSD-src-74f44e9118c6128d583e17eb9c7f6c28741e03b6.tar.gz | |
Avoid lock order reversal filedesc/Giant when calling FREE() in fdalloc
by unlocking the filedesc before calling FREE().
Submitted by: bde
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/kern_descrip.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 531b67f..7628d5a 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -956,9 +956,11 @@ fdalloc(td, want, result) fdp->fd_nfiles = nfiles; fdexpand++; if (oldofile != NULL) { + FILEDESC_UNLOCK(fdp); mtx_lock(&Giant); FREE(oldofile, M_FILEDESC); mtx_unlock(&Giant); + FILEDESC_LOCK(fdp); } } return (0); |
