fs/9p: Attach writeback_fid on first open with WR flag
We don't need writeback fid if we are only doing O_RDONLY open
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 3337d58..6997eb6 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -91,7 +91,8 @@
file->private_data = fid;
mutex_lock(&v9inode->v_mutex);
- if (v9ses->cache && !v9inode->writeback_fid) {
+ if (v9ses->cache && !v9inode->writeback_fid &&
+ ((file->f_flags & O_ACCMODE) != O_RDONLY)) {
/*
* clone a fid and add it to writeback_fid
* we do it during open time instead of
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 0afbbb4..774a20a 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -652,7 +652,8 @@
if (nd && nd->flags & LOOKUP_OPEN) {
v9inode = V9FS_I(dentry->d_inode);
mutex_lock(&v9inode->v_mutex);
- if (v9ses->cache && !v9inode->writeback_fid) {
+ if (v9ses->cache && !v9inode->writeback_fid &&
+ ((flags & O_ACCMODE) != O_RDONLY)) {
/*
* clone a fid and add it to writeback_fid
* we do it during open time instead of
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 0a0ac30..8b616dc 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -246,7 +246,8 @@
v9inode = V9FS_I(inode);
mutex_lock(&v9inode->v_mutex);
- if (v9ses->cache && !v9inode->writeback_fid) {
+ if (v9ses->cache && !v9inode->writeback_fid &&
+ ((flags & O_ACCMODE) != O_RDONLY)) {
/*
* clone a fid and add it to writeback_fid
* we do it during open time instead of