[CIFS] Add mount option for disabling sending byte range lock requests
over the wire (to help the case when applications break with cifs mandatory
lock behavior. Add part one of mount option for requesting case
insensitive path name matching.
Signed-off-by: Steve French (sfrench@us.ibm.com)
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 3196d4c..b0429ea 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,3 +1,11 @@
+Version 1.36
+------------
+Add mount option for disabling the default behavior of sending byte range lock
+requests to the server (necessary for certain applications which break with
+mandatory lock behavior such as Evolution), and also mount option for
+requesting case insensitive matching for path based requests (requesting
+case sensitive is the default).
+
Version 1.35
------------
Add writepage performance improvements. Fix path name conversions
diff --git a/fs/cifs/README b/fs/cifs/README
index 34b0cf7..3b610d0 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -407,6 +407,13 @@
This has no effect if the server does not support
Unicode on the wire.
nomapchars Do not translate any of these seven characters (default).
+ nocase Request case insensitive path name matching (case
+ sensitive is the default if the server suports it).
+ nobrl Do not send byte range lock requests to the server.
+ This is necessary for certain applications that break
+ with cifs style mandatory byte range locks (and most
+ cifs servers do not yet support requesting advisory
+ byte range locks).
remount remount the share (often used to change from ro to rw mounts
or vice versa)
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 6b93587..5fb695f 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -26,6 +26,8 @@
#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible. */
#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
+#define CIFS_MOUNT_CASE_INSENS 0x100 /* Request case insenstive searches */
+#define CIFS_MOUNT_NO_BRL 0x200 /* No sending byte range locks to srv */
struct cifs_sb_info {
struct cifsTconInfo *tcon; /* primary mount */
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 78af585..cf45ca3 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -96,5 +96,5 @@
extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
extern int cifs_ioctl (struct inode * inode, struct file * filep,
unsigned int command, unsigned long arg);
-#define CIFS_VERSION "1.35"
+#define CIFS_VERSION "1.36"
#endif /* _CIFSFS_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index ef0432c..6b21f6a 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -79,6 +79,8 @@
unsigned remap:1; /* set to remap seven reserved chars in filenames */
unsigned posix_paths:1; /* unset to not ask for posix pathnames. */
unsigned sfu_emul:1;
+ unsigned nocase; /* request case insensitive filenames */
+ unsigned nobrl; /* disable sending byte range locks to srv */
unsigned int rsize;
unsigned int wsize;
unsigned int sockopt;
@@ -1040,6 +1042,12 @@
vol->posix_paths = 1;
} else if (strnicmp(data, "noposixpaths", 12) == 0) {
vol->posix_paths = 0;
+ } else if (strnicmp(data, "nocase", 6) == 0) {
+ vol->nocase = 1;
+ } else if (strnicmp(data, "brl", 3) == 0) {
+ vol->nobrl = 0;
+ } else if (strnicmp(data, "nobrl", 5) == 0) {
+ vol->nobrl = 1;
} else if (strnicmp(data, "setuids", 7) == 0) {
vol->setuids = 1;
} else if (strnicmp(data, "nosetuids", 9) == 0) {
@@ -1699,9 +1707,13 @@
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
if(volume_info.sfu_emul)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL;
+ if(volume_info.nocase)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CASE_INSENS;
+ if(volume_info.nobrl)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_BRL;
if(volume_info.direct_io) {
- cERROR(1,("mounting share using direct i/o"));
+ cFYI(1,("mounting share using direct i/o"));
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
}
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 628aa1a..ed3e920 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -166,6 +166,8 @@
inode->i_fop = &cifs_file_direct_ops;
else
inode->i_fop = &cifs_file_ops;
+ if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop->lock = NULL;
inode->i_data.a_ops = &cifs_addr_ops;
} else if (S_ISDIR(inode->i_mode)) {
cFYI(1, (" Directory inode"));
@@ -369,6 +371,8 @@
inode->i_fop = &cifs_file_direct_ops;
else
inode->i_fop = &cifs_file_ops;
+ if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop->lock = NULL;
inode->i_data.a_ops = &cifs_addr_ops;
} else if (S_ISDIR(inode->i_mode)) {
cFYI(1, (" Directory inode "));
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index dec3c9d..ef5eb80 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -194,6 +194,8 @@
tmp_inode->i_fop = &cifs_file_direct_ops;
else
tmp_inode->i_fop = &cifs_file_ops;
+ if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ tmp_inode->i_fop->lock = NULL;
tmp_inode->i_data.a_ops = &cifs_addr_ops;
if(isNewInode)
@@ -298,6 +300,8 @@
tmp_inode->i_fop = &cifs_file_direct_ops;
else
tmp_inode->i_fop = &cifs_file_ops;
+ if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ tmp_inode->i_fop->lock = NULL;
tmp_inode->i_data.a_ops = &cifs_addr_ops;
if(isNewInode)
@@ -557,7 +561,6 @@
char * end_of_smb = cifsFile->srch_inf.ntwrk_buf_start +
smbCalcSize((struct smb_hdr *)
cifsFile->srch_inf.ntwrk_buf_start);
-/* dump_cifs_file_struct(file,"found entry in fce "); */
first_entry_in_buffer = cifsFile->srch_inf.index_of_last_entry
- cifsFile->srch_inf.entries_in_buffer;
pos_in_buf = index_to_find - first_entry_in_buffer;
@@ -595,7 +598,6 @@
*num_to_ret = 0;
} else
*num_to_ret = cifsFile->srch_inf.entries_in_buffer - pos_in_buf;
-/* dump_cifs_file_struct(file, "end fce ");*/
return rc;
}
@@ -815,14 +817,12 @@
FreeXid(xid);
return -EIO;
}
-/* dump_cifs_file_struct(file, "Begin rdir "); */
cifs_sb = CIFS_SB(file->f_dentry->d_sb);
pTcon = cifs_sb->tcon;
if(pTcon == NULL)
return -EINVAL;
-/* cFYI(1,("readdir2 pos: %lld",file->f_pos)); */
switch ((int) file->f_pos) {
case 0:
@@ -876,7 +876,6 @@
cifsFile->search_resume_name = NULL; */
/* BB account for . and .. in f_pos as special case */
- /* dump_cifs_file_struct(file, "rdir after default ");*/
rc = find_cifs_entry(xid,pTcon, file,
¤t_entry,&num_to_fill);
@@ -924,7 +923,6 @@
} /* end switch */
rddir2_exit:
- /* dump_cifs_file_struct(file, "end rdir "); */
FreeXid(xid);
return rc;
}