From c46fa8acdc533e8084359ea11c79d56eb98313fb Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 18 Aug 2005 20:49:57 -0700 Subject: [PATCH] [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) --- fs/cifs/CHANGES | 8 ++++++++ fs/cifs/README | 7 +++++++ fs/cifs/cifs_fs_sb.h | 2 ++ fs/cifs/cifsfs.h | 2 +- fs/cifs/connect.c | 14 +++++++++++++- fs/cifs/inode.c | 4 ++++ fs/cifs/readdir.c | 10 ++++------ 7 files changed, 39 insertions(+), 8 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 3196d4c4ee..b0429ea524 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 34b0cf7111..3b610d08dc 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -407,6 +407,13 @@ A partial list of the supported mount options follows: 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 6b93587c49..5fb695f1e5 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 78af5850c5..cf45ca359d 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -96,5 +96,5 @@ extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t); 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 ef0432c444..6b21f6aa9f 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -79,6 +79,8 @@ struct smb_vol { 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 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) 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_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, 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 628aa1a9fe..ed3e9207d9 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -166,6 +166,8 @@ int cifs_get_inode_info_unix(struct inode **pinode, 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 @@ int cifs_get_inode_info(struct inode **pinode, 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 dec3c9dd04..ef5eb804ce 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -194,6 +194,8 @@ static void fill_in_inode(struct inode *tmp_inode, 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 @@ static void unix_fill_in_inode(struct inode *tmp_inode, 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 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, 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 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, *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 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) 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 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) 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 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) } /* end switch */ rddir2_exit: - /* dump_cifs_file_struct(file, "end rdir "); */ FreeXid(xid); return rc; } -- 2.39.5