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-rw-r--r--fs/cifs/misc.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index c4e296fe3518..43f10281bc19 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -569,10 +569,9 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
569 569
570 cFYI(1, "file id match, oplock break"); 570 cFYI(1, "file id match, oplock break");
571 pCifsInode = CIFS_I(netfile->dentry->d_inode); 571 pCifsInode = CIFS_I(netfile->dentry->d_inode);
572 pCifsInode->clientCanCacheAll = false;
573 if (pSMB->OplockLevel == 0)
574 pCifsInode->clientCanCacheRead = false;
575 572
573 cifs_set_oplock_level(pCifsInode,
574 pSMB->OplockLevel);
576 /* 575 /*
577 * cifs_oplock_break_put() can't be called 576 * cifs_oplock_break_put() can't be called
578 * from here. Get reference after queueing 577 * from here. Get reference after queueing
@@ -722,3 +721,23 @@ cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb)
722 cifs_sb_master_tcon(cifs_sb)->treeName); 721 cifs_sb_master_tcon(cifs_sb)->treeName);
723 } 722 }
724} 723}
724
725void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock)
726{
727 oplock &= 0xF;
728
729 if (oplock == OPLOCK_EXCLUSIVE) {
730 cinode->clientCanCacheAll = true;
731 cinode->clientCanCacheRead = true;
732 cFYI(1, "Exclusive Oplock granted on inode %p",
733 &cinode->vfs_inode);
734 } else if (oplock == OPLOCK_READ) {
735 cinode->clientCanCacheAll = false;
736 cinode->clientCanCacheRead = true;
737 cFYI(1, "Level II Oplock granted on inode %p",
738 &cinode->vfs_inode);
739 } else {
740 cinode->clientCanCacheAll = false;
741 cinode->clientCanCacheRead = false;
742 }
743}