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authorAl Viro <viro@zeniv.linux.org.uk>2014-04-11 12:01:03 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-04-12 07:04:19 -0400
commita786c06d9f2719203c00b3d97b21f9a96980d0b5 (patch)
tree29a5e2ea710084cc115ec496e667658704ab72c2 /mm/shmem.c
parent19dfc1f5f2ef03a52aa30c8257c5745edef23f55 (diff)
downloadlinux-a786c06d9f2719203c00b3d97b21f9a96980d0b5.tar.bz2
missing bits of "splice: fix racy pipe->buffers uses"
that commit has fixed only the parts of that mess in fs/splice.c itself; there had been more in several other ->splice_read() instances... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/shmem.c')
-rw-r--r--mm/shmem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 17d3799d04bd..37400a148f29 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1613,7 +1613,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
index = *ppos >> PAGE_CACHE_SHIFT;
loff = *ppos & ~PAGE_CACHE_MASK;
req_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
- nr_pages = min(req_pages, pipe->buffers);
+ nr_pages = min(req_pages, spd.nr_pages_max);
spd.nr_pages = find_get_pages_contig(mapping, index,
nr_pages, spd.pages);