path: root/mm
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 10:49:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 10:49:34 -0700
commitf362f98e7c445643d27c610bb7a86b79727b592e (patch)
tree399d9ebccdfbdfe9690ab1403a001d6f08e54b41 /mm
parentMerge http://sucs.org/~rohan/git/gfs2-3.0-nmw (diff)
parentleases: fix write-open/read-lease race (diff)
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue: (21 commits) leases: fix write-open/read-lease race nfs: drop unnecessary locking in llseek ext4: replace cut'n'pasted llseek code with generic_file_llseek_size vfs: add generic_file_llseek_size vfs: do (nearly) lockless generic_file_llseek direct-io: merge direct_io_walker into __blockdev_direct_IO direct-io: inline the complete submission path direct-io: separate map_bh from dio direct-io: use a slab cache for struct dio direct-io: rearrange fields in dio/dio_submit to avoid holes direct-io: fix a wrong comment direct-io: separate fields only used in the submission path from struct dio vfs: fix spinning prevention in prune_icache_sb vfs: add a comment to inode_permission() vfs: pass all mask flags check_acl and posix_acl_permission vfs: add hex format for MAY_* flag values vfs: indicate that the permission functions take all the MAY_* flags compat: sync compat_stats with statfs. vfs: add "device" tag to /proc/self/mountstats cleanup: vfs: small comment fix for block_invalidatepage ... Fix up trivial conflict in fs/gfs2/file.c (llseek changes)
Diffstat (limited to 'mm')
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 7771871fa353..5cf820a7c8ec 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2115,6 +2115,7 @@ void iov_iter_advance(struct iov_iter *i, size_t bytes)
} else {
const struct iovec *iov = i->iov;
size_t base = i->iov_offset;
+ unsigned long nr_segs = i->nr_segs;
* The !iov->iov_len check ensures we skip over unlikely
@@ -2130,11 +2131,13 @@ void iov_iter_advance(struct iov_iter *i, size_t bytes)
base += copy;
if (iov->iov_len == base) {
+ nr_segs--;
base = 0;
i->iov = iov;
i->iov_offset = base;
+ i->nr_segs = nr_segs;