From: Paul Jackson <[email protected]>
Simplify the space stripping code in cgroup file write.
Signed-off-by: Paul Jackson <[email protected]>
---
This patch applies after both:
Adrian Bunk's: [2.6 patch] kernel/cgroup.c: remove dead code
pj's: [PATCH] cgroup brace coding style fix
kernel/cgroup.c | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)
--- 2.6.23-mm1.orig/kernel/cgroup.c 2007-10-24 10:03:11.847801501 -0700
+++ 2.6.23-mm1/kernel/cgroup.c 2007-10-24 10:29:08.355032464 -0700
@@ -1327,6 +1327,7 @@ static ssize_t cgroup_common_file_write(
goto out1;
}
buffer[nbytes] = 0; /* nul-terminate */
+ strstrip(buffer); /* strip -just- trailing whitespace */
mutex_lock(&cgroup_mutex);
@@ -1347,19 +1348,9 @@ static ssize_t cgroup_common_file_write(
clear_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags);
break;
case FILE_RELEASE_AGENT:
- {
- struct cgroupfs_root *root = cgrp->root;
- /* Strip trailing newline */
- if (nbytes && (buffer[nbytes-1] == '\n'))
- buffer[nbytes-1] = 0;
- /* We never write anything other than '\0'
- * into the last char of release_agent_path,
- * so it always remains a NUL-terminated
- * string */
- strncpy(root->release_agent_path, buffer, nbytes);
- root->release_agent_path[nbytes] = 0;
+ BUG_ON(sizeof(cgrp->root->release_agent_path) < PATH_MAX);
+ strcpy(cgrp->root->release_agent_path, buffer);
break;
- }
default:
retval = -EINVAL;
goto out2;
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <[email protected]> 1.650.933.1373
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