The patch titled
Subject: fs/proc/proc_sysctl.c: fix typo in sysctl_check_table_array()
has been added to the -mm tree. Its filename is
proc-sysctl-fix-typo-in-sysctl_check_table_array.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/proc-sysctl-fix-typo-in-sysctl_check_table_array.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/proc-sysctl-fix-typo-in-sysctl_check_table_array.patch
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------------------------------------------------------
From: Waiman Long <longman@xxxxxxxxxx>
Subject: fs/proc/proc_sysctl.c: fix typo in sysctl_check_table_array()
Patch series "ipc: Clamp *mni to the real IPCMNI limit", v3.
The sysctl parameters msgmni, shmmni and semmni have an inherent limit of
IPC_MNI (32k). However, users may not be aware of that because they can
write a value much higher than that without getting any error or
notification. Reading the parameters back will show the newly written
values which are not real.
Enforcing the limit by failing sysctl parameter write, however, can break
existing user applications. To address this delemma, a new flags field is
introduced into the ctl_table. The value CTL_FLAGS_CLAMP_RANGE can be
added to any ctl_table entries to enable a looser range clamping without
returning any error. For example,
.flags = CTL_FLAGS_CLAMP_RANGE,
This flags value are now used for the range checking of shmmni, msgmni and
semmni without breaking existing applications. If any out of range value
is written to those sysctl parameters, the following warning will be
printed instead.
Kernel parameter "shmmni" was set out of range [0, 32768], clamped to 32768.
Reading the values back will show 32768 instead of some fake values.
This patch (of 6):
Fix a typo.
Link: http://lkml.kernel.org/r/1519926220-7453-2-git-send-email-longman@xxxxxxxxxx
Signed-off-by: Waiman Long <longman@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
Cc: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/proc_sysctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/proc/proc_sysctl.c~proc-sysctl-fix-typo-in-sysctl_check_table_array fs/proc/proc_sysctl.c
--- a/fs/proc/proc_sysctl.c~proc-sysctl-fix-typo-in-sysctl_check_table_array
+++ a/fs/proc/proc_sysctl.c
@@ -1086,7 +1086,7 @@ static int sysctl_check_table_array(cons
if ((table->proc_handler == proc_douintvec) ||
(table->proc_handler == proc_douintvec_minmax)) {
if (table->maxlen != sizeof(unsigned int))
- err |= sysctl_err(path, table, "array now allowed");
+ err |= sysctl_err(path, table, "array not allowed");
}
return err;
_
Patches currently in -mm which might be from longman@xxxxxxxxxx are
list_lru-prefetch-neighboring-list-entries-before-acquiring-lock.patch
proc-sysctl-fix-typo-in-sysctl_check_table_array.patch
sysctl-add-kdoc-comments-to-do_proc_douintvec_minmax_conv_param.patch
sysctl-add-flags-to-support-min-max-range-clamping.patch
sysctl-warn-when-a-clamped-sysctl-parameter-is-set-out-of-range.patch
ipc-clamp-msgmni-and-shmmni-to-the-real-ipcmni-limit.patch
ipc-clamp-semmni-to-the-real-ipcmni-limit.patch
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