diff options
| author | Christoph Hellwig <hch@lst.de> | 2007-05-18 13:12:40 +0200 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-05-25 11:06:37 -0700 |
| commit | d9b08b9efece1f397143378938e626d0de29e911 (patch) | |
| tree | d404fd44f53d535d96379d56d5520c6f5acd604c /fs/ocfs2 | |
| parent | 8fccfc829a66b8b879c6672940523a402a786ce1 (diff) | |
[PATCH] ocfs2: use generic_segment_checks
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/file.c | 32 |
1 files changed, 1 insertions, 31 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index d459eb93b70c..ac6c96431bbc 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1419,36 +1419,6 @@ out: return total ? total : ret; } -static int ocfs2_check_iovec(const struct iovec *iov, size_t *counted, - unsigned long *nr_segs) -{ - size_t ocount; /* original count */ - unsigned long seg; - - ocount = 0; - for (seg = 0; seg < *nr_segs; seg++) { - const struct iovec *iv = &iov[seg]; - - /* - * If any segment has a negative length, or the cumulative - * length ever wraps negative then return -EINVAL. - */ - ocount += iv->iov_len; - if (unlikely((ssize_t)(ocount|iv->iov_len) < 0)) - return -EINVAL; - if (access_ok(VERIFY_READ, iv->iov_base, iv->iov_len)) - continue; - if (seg == 0) - return -EFAULT; - *nr_segs = seg; - ocount -= iv->iov_len; /* This segment is no good */ - break; - } - - *counted = ocount; - return 0; -} - static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, @@ -1471,7 +1441,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, if (iocb->ki_left == 0) return 0; - ret = ocfs2_check_iovec(iov, &ocount, &nr_segs); + ret = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ); if (ret) return ret; |