diff options
| author | alfred <alfred@FreeBSD.org> | 2002-12-27 08:39:42 +0000 |
|---|---|---|
| committer | alfred <alfred@FreeBSD.org> | 2002-12-27 08:39:42 +0000 |
| commit | 8c99fb48c77891dd9847117ad025ce08215e71fd (patch) | |
| tree | 9fa9515089ff35c1dc1c7689aa6b80fb8dd5f152 /sys/kern/vfs_aio.c | |
| parent | baa27ec2ab63c9f960ba6639448d4dbc4ec095ba (diff) | |
| download | FreeBSD-src-8c99fb48c77891dd9847117ad025ce08215e71fd.zip FreeBSD-src-8c99fb48c77891dd9847117ad025ce08215e71fd.tar.gz | |
Lock filedesc while performing a range check on the file descriptor.
Reviewed by: alc
Diffstat (limited to 'sys/kern/vfs_aio.c')
| -rw-r--r-- | sys/kern/vfs_aio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/vfs_aio.c b/sys/kern/vfs_aio.c index 9fde837..45b25fc 100644 --- a/sys/kern/vfs_aio.c +++ b/sys/kern/vfs_aio.c @@ -1326,8 +1326,10 @@ _aio_aqueue(struct thread *td, struct aiocb *job, struct aio_liojob *lj, int typ /* * Range check file descriptor. */ + FILEDESC_LOCK(fdp); fd = aiocbe->uaiocb.aio_fildes; if (fd >= fdp->fd_nfiles) { + FILEDESC_UNLOCK(fdp); uma_zfree(aiocb_zone, aiocbe); if (type == 0) suword(&job->_aiocb_private.error, EBADF); @@ -1337,12 +1339,14 @@ _aio_aqueue(struct thread *td, struct aiocb *job, struct aio_liojob *lj, int typ fp = aiocbe->fd_file = fdp->fd_ofiles[fd]; if ((fp == NULL) || ((opcode == LIO_WRITE) && ((fp->f_flag & FWRITE) == 0))) { + FILEDESC_UNLOCK(fdp); uma_zfree(aiocb_zone, aiocbe); if (type == 0) suword(&job->_aiocb_private.error, EBADF); return EBADF; } fhold(fp); + FILEDESC_UNLOCK(fdp); if (aiocbe->uaiocb.aio_offset == -1LL) { error = EINVAL; |
