diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/filemap.c | 2 | ||||
| -rw-r--r-- | mm/page-writeback.c | 4 |
2 files changed, 4 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 56fa431c52af..e7fe07f7963d 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2620,6 +2620,8 @@ ssize_t filemap_read(struct kiocb *iocb, struct iov_iter *iter, loff_t isize, end_offset; loff_t last_pos = ra->prev_pos; + if (unlikely(iocb->ki_pos < 0)) + return -EINVAL; if (unlikely(iocb->ki_pos >= inode->i_sb->s_maxbytes)) return 0; if (unlikely(!iov_iter_count(iter))) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index fcd4c1439cb9..72a5d8836425 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -54,7 +54,7 @@ #define DIRTY_POLL_THRESH (128 >> (PAGE_SHIFT - 10)) /* - * Estimate write bandwidth at 200ms intervals. + * Estimate write bandwidth or update dirty limit at 200ms intervals. */ #define BANDWIDTH_INTERVAL max(HZ/5, 1) @@ -586,7 +586,7 @@ static void wb_domain_writeout_add(struct wb_domain *dom, /* First event after period switching was turned off? */ if (unlikely(!dom->period_time)) { /* - * We can race with other __bdi_writeout_inc calls here but + * We can race with other wb_domain_writeout_add calls here but * it does not cause any harm since the resulting time when * timer will fire and what is in writeout_period_time will be * roughly the same. |