[PATCH] FS: file name should be unique in the same dir in procfs
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From: Zhang Rui <rui.zhang@intel.com>
Date: 2007-08-16 10:32:00
Also in:
linux-fsdevel
Files name should be unique in the same directory. Bug is reported here: http://bugzilla.kernel.org/show_bug.cgi?id=8798 Signed-off-by: Zhang Rui <rui.zhang@intel.com> --- fs/proc/generic.c | 8 ++++++++ 1 file changed, 8 insertions(+) Index: linux-2.6.23-rc3/fs/proc/generic.c ===================================================================
--- linux-2.6.23-rc3.orig/fs/proc/generic.c
+++ linux-2.6.23-rc3/fs/proc/generic.c@@ -523,6 +523,7 @@ static const struct inode_operations pro static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp) { + struct proc_dir_entry * tmp = NULL; unsigned int i; i = get_inode_number();
@@ -547,6 +548,13 @@ static int proc_register(struct proc_dir } spin_lock(&proc_subdir_lock); + for(tmp = dir->subdir; tmp; tmp = tmp->next) + if(!strcmp(dp->name, tmp->name)) { + spin_unlock(&proc_subdir_lock); + release_inode_number(i); + return -EEXIST; + } + dp->next = dir->subdir; dp->parent = dir; dir->subdir = dp;