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On systems with block devices containing slashes (virtual dasd, cciss,
etc), reiserfs will fail to initialize /proc/fs/reiserfs/<dev> 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/<number> rather than dm-<number>
Signed-off-by: Jeff Mahoney <[email protected]>
- --
fs/reiserfs/procfs.c | 25 +++++++++++++++++++++----
1 file changed, 21 insertions(+), 4 deletions(-)
diff -ruNp linux-2.6.17.orig/fs/reiserfs/procfs.c linux-2.6.17.orig.devel/fs/reiserfs/procfs.c
- --- linux-2.6.17.orig/fs/reiserfs/procfs.c 2006-07-12 11:58:56.000000000 -0400
+++ linux-2.6.17.orig.devel/fs/reiserfs/procfs.c 2006-07-12 12:39:17.000000000 -0400
@@ -493,9 +493,17 @@ static void add_file(struct super_block
int reiserfs_proc_info_init(struct super_block *sb)
{
+ char bdev[BDEVNAME_SIZE];
+ char *s;
+
+ /* Some block devices use /'s */
+ strlcpy(bdev, reiserfs_bdevname(sb), BDEVNAME_SIZE);
+ s = strchr(bdev, '/');
+ 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(bdev, proc_info_root);
if (REISERFS_SB(sb)->procdir) {
REISERFS_SB(sb)->procdir->owner = THIS_MODULE;
REISERFS_SB(sb)->procdir->data = sb;
@@ -509,13 +517,22 @@ int reiserfs_proc_info_init(struct super
return 0;
}
reiserfs_warning(sb, "reiserfs: cannot create /proc/%s/%s",
- - proc_info_root_name, reiserfs_bdevname(sb));
+ proc_info_root_name, bdev);
return 1;
}
int reiserfs_proc_info_done(struct super_block *sb)
{
struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
+ char bdev[BDEVNAME_SIZE];
+ char *s;
+
+ /* Some block devices use /'s */
+ strlcpy(bdev, reiserfs_bdevname(sb), BDEVNAME_SIZE);
+ s = strchr(bdev, '/');
+ if (s)
+ *s = '!';
+
if (de) {
remove_proc_entry("journal", de);
remove_proc_entry("oidmap", de);
@@ -529,7 +546,7 @@ int reiserfs_proc_info_done(struct super
__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(bdev, proc_info_root);
REISERFS_SB(sb)->procdir = NULL;
}
return 0;
- --
Jeff Mahoney
SUSE Labs
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