When we close the last file handle of the inode we should invalidate it
to prevent data coherency problem when we open it again but it has been
modified by other clients.
Signed-off-by: Pavel Shilovsky <piastryyy@xxxxxxxxx>
---
fs/cifs/file.c | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index d7c212a..02a045e 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -150,8 +150,14 @@ client_can_cache:
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
cFYI(1, "Exclusive Oplock granted on inode %p", inode);
- } else if ((oplock & 0xF) == OPLOCK_READ)
+ } else if ((oplock & 0xF) == OPLOCK_READ) {
+ pCifsInode->clientCanCacheAll = false;
pCifsInode->clientCanCacheRead = true;
+ cFYI(1, "Level II Oplock franted on inode %p", inode);
+ } else {
+ pCifsInode->clientCanCacheAll = false;
+ pCifsInode->clientCanCacheRead = false;
+ }
return rc;
}
@@ -271,8 +277,10 @@ cifs_new_fileinfo(__u16 fileHandle, struct file *file,
*/
void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
{
+ struct inode *inode = cifs_file->dentry->d_inode;
struct cifsTconInfo *tcon = tlink_tcon(cifs_file->tlink);
- struct cifsInodeInfo *cifsi = CIFS_I(cifs_file->dentry->d_inode);
+ struct cifsInodeInfo *cifsi = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct cifsLockInfo *li, *tmp;
spin_lock(&cifs_file_list_lock);
@@ -290,6 +298,8 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
cifs_file->dentry->d_inode);
cifsi->clientCanCacheRead = false;
cifsi->clientCanCacheAll = false;
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
+ invalidate_remote_inode(inode);
}
spin_unlock(&cifs_file_list_lock);
--
1.6.3.3
--
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