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CIFS: Add cifs_set_oplock_level

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Simplify many places when we need to set oplock level on an inode.

Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Pavel Shilovsky
2010-11-02 12:00:42 +03:00
committed by Steve French
parent ce2f6fb8bd
commit e66673e39a
3 changed files with 30 additions and 32 deletions
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fs/cifs/misc.c
+20 -3
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@@ -569,10 +569,9 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
cFYI(1, "file id match, oplock break");
pCifsInode = CIFS_I(netfile->dentry->d_inode);
pCifsInode->clientCanCacheAll = false;
if (pSMB->OplockLevel == 0)
pCifsInode->clientCanCacheRead = false;
cifs_set_oplock_level(netfile->dentry->d_inode,
pSMB->OplockLevel);
/*
* cifs_oplock_break_put() can't be called
* from here. Get reference after queueing
@@ -722,3 +721,21 @@ cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb)
cifs_sb_master_tcon(cifs_sb)->treeName);
}
}
void cifs_set_oplock_level(struct inode *inode, __u32 oplock)
{
struct cifsInodeInfo *cinode = CIFS_I(inode);
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
cinode->clientCanCacheAll = true;
cinode->clientCanCacheRead = true;
cFYI(1, "Exclusive Oplock granted on inode %p", inode);
} else if ((oplock & 0xF) == OPLOCK_READ) {
cinode->clientCanCacheAll = false;
cinode->clientCanCacheRead = true;
cFYI(1, "Level II Oplock granted on inode %p", inode);
} else {
cinode->clientCanCacheAll = false;
cinode->clientCanCacheRead = false;
}
}