From: Andrey Vagin <avagin@xxxxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
===============
commit 1fc98d11cac6dd66342e5580cb2687e5b1e9a613 upstream.
MAX_HANDLE_SZ is equal to 128, but currently the size of pad is only 64
bytes, so exportfs_encode_inode_fh can return an error.
Signed-off-by: Andrey Vagin <avagin@xxxxxxxxxx>
Acked-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
fs/notify/fdinfo.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index 238a5930cb3c..660d33bc1bef 100644
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -42,7 +42,7 @@ static int show_mark_fhandle(struct seq_file *m, struct inode *inode)
{
struct {
struct file_handle handle;
- u8 pad[64];
+ u8 pad[MAX_HANDLE_SZ];
} f;
int size, ret, i;
@@ -50,7 +50,7 @@ static int show_mark_fhandle(struct seq_file *m, struct inode *inode)
size = f.handle.handle_bytes >> 2;
ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, 0);
- if ((ret == 255) || (ret == -ENOSPC)) {
+ if ((ret == FILEID_INVALID) || (ret == -ENOSPC)) {
WARN_ONCE(1, "Can't encode file handler for inotify: %d\n", ret);
return 0;
}
--
2.1.1
--
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