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authorSteve French <smfrench@gmail.com>2011-10-12 17:47:03 -0500
committerSteve French <smfrench@gmail.com>2011-10-12 23:42:05 -0500
commite75047344ea415760b2508a6fa29c0288c7b6b68 (patch)
tree14abdd67059e4d6a33ce149a4474dbaafc75b9b7 /fs/cifs/file.c
parentba749e6d5227de22e442c6088cc7dc1f0c5c68bf (diff)
downloadlinux-e75047344ea415760b2508a6fa29c0288c7b6b68.tar.bz2
add new module parameter 'enable_oplocks'
Thus spake Jeff Layton: "Making that a module parm would allow you to set that parameter at boot time without needing to add special startup scripts. IMO, all of the procfile "switches" under /proc/fs/cifs should be module parms instead." This patch doesn't alter the default behavior (Oplocks are enabled by default). To disable oplocks when loading the module, use modprobe cifs enable_oplocks=0 (any of '0' or 'n' or 'N' conventions can be used). To disable oplocks at runtime using the new interface, use echo 0 > /sys/module/cifs/parameters/enable_oplocks The older /proc/fs/cifs/OplockEnabled interface will be deprecated after two releases. A subsequent patch will add an warning message about this deprecation. Changes since v2: - make enable_oplocks a 'bool' Changes since v1: - eliminate the use of extra variable by renaming the old one to enable_oplocks and make it an 'int' type. Reported-by: Alexander Swen <alex@swen.nu> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/file.c')
-rw-r--r--fs/cifs/file.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index fd57165f55fa..8e184150cfb5 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -371,7 +371,7 @@ int cifs_open(struct inode *inode, struct file *file)
cFYI(1, "inode = 0x%p file flags are 0x%x for %s",
inode, file->f_flags, full_path);
- if (oplockEnabled)
+ if (enable_oplocks)
oplock = REQ_OPLOCK;
else
oplock = 0;
@@ -495,7 +495,7 @@ static int cifs_reopen_file(struct cifsFileInfo *pCifsFile, bool can_flush)
cFYI(1, "inode = 0x%p file flags 0x%x for %s",
inode, pCifsFile->f_flags, full_path);
- if (oplockEnabled)
+ if (enable_oplocks)
oplock = REQ_OPLOCK;
else
oplock = 0;