From 6fbe82a952790c634ea6035c223a01a81377daf1 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 14 Jul 2006 00:24:22 -0700 Subject: [PATCH] [PATCH] reiserfs: fix handling of device names with /'s in them On systems with block devices containing a slash (virtual dasd, cciss, etc), reiserfs will fail to initialize /proc/fs/reiserfs/ due to it being interpreted as a subdirectory. The generic block device code changes the / to ! for use in the sysfs tree. This patch uses that convention. Tested by making dm devices use dm/ rather than dm- [akpm@osdl.org: name variables consistently] Signed-off-by: Jeff Mahoney Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/reiserfs/procfs.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c index 5d8a8cfebc70..c533ec1bcaec 100644 --- a/fs/reiserfs/procfs.c +++ b/fs/reiserfs/procfs.c @@ -492,9 +492,17 @@ static void add_file(struct super_block *sb, char *name, int reiserfs_proc_info_init(struct super_block *sb) { + char b[BDEVNAME_SIZE]; + char *s; + + /* Some block devices use /'s */ + strlcpy(b, reiserfs_bdevname(sb), BDEVNAME_SIZE); + s = strchr(b, '/'); + if (s) + *s = '!'; + spin_lock_init(&__PINFO(sb).lock); - REISERFS_SB(sb)->procdir = - proc_mkdir(reiserfs_bdevname(sb), proc_info_root); + REISERFS_SB(sb)->procdir = proc_mkdir(b, proc_info_root); if (REISERFS_SB(sb)->procdir) { REISERFS_SB(sb)->procdir->owner = THIS_MODULE; REISERFS_SB(sb)->procdir->data = sb; @@ -508,13 +516,22 @@ int reiserfs_proc_info_init(struct super_block *sb) return 0; } reiserfs_warning(sb, "reiserfs: cannot create /proc/%s/%s", - proc_info_root_name, reiserfs_bdevname(sb)); + proc_info_root_name, b); return 1; } int reiserfs_proc_info_done(struct super_block *sb) { struct proc_dir_entry *de = REISERFS_SB(sb)->procdir; + char b[BDEVNAME_SIZE]; + char *s; + + /* Some block devices use /'s */ + strlcpy(b, reiserfs_bdevname(sb), BDEVNAME_SIZE); + s = strchr(b, '/'); + if (s) + *s = '!'; + if (de) { remove_proc_entry("journal", de); remove_proc_entry("oidmap", de); @@ -528,7 +545,7 @@ int reiserfs_proc_info_done(struct super_block *sb) __PINFO(sb).exiting = 1; spin_unlock(&__PINFO(sb).lock); if (proc_info_root) { - remove_proc_entry(reiserfs_bdevname(sb), proc_info_root); + remove_proc_entry(b, proc_info_root); REISERFS_SB(sb)->procdir = NULL; } return 0; -- 2.30.2