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| author | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-10-23 15:24:10 +0200 |
|---|---|---|
| committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-10-23 15:24:10 +0200 |
| commit | d9214556b11a8d18ff588e60824c12041d30f791 (patch) | |
| tree | 04ab59d13961675811a55c96fb12b2b167b72318 /ipc/mqueue.c | |
| parent | 72a1419a9d4c859a3345e4b83f8ef7d599d3818c (diff) | |
| parent | e82c6106b04b85879d802bbbeaed30d9b10a92e2 (diff) | |
| download | kernel-crypto-d9214556b11a8d18ff588e60824c12041d30f791.tar.gz kernel-crypto-d9214556b11a8d18ff588e60824c12041d30f791.tar.xz kernel-crypto-d9214556b11a8d18ff588e60824c12041d30f791.zip | |
Merge branches 'boards' and 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
Diffstat (limited to 'ipc/mqueue.c')
| -rw-r--r-- | ipc/mqueue.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 96fb36cd987..68eb857cfde 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -52,6 +52,14 @@ #define HARD_MSGMAX (131072/sizeof(void*)) #define DFLT_MSGSIZEMAX 8192 /* max message size */ +/* + * Define the ranges various user-specified maximum values can + * be set to. + */ +#define MIN_MSGMAX 1 /* min value for msg_max */ +#define MAX_MSGMAX HARD_MSGMAX /* max value for msg_max */ +#define MIN_MSGSIZEMAX 128 /* min value for msgsize_max */ +#define MAX_MSGSIZEMAX (8192*128) /* max value for msgsize_max */ struct ext_wait_queue { /* queue of sleeping tasks */ struct task_struct *task; @@ -134,8 +142,8 @@ static struct inode *mqueue_get_inode(struct super_block *sb, int mode, info->qsize = 0; info->user = NULL; /* set when all is ok */ memset(&info->attr, 0, sizeof(info->attr)); - info->attr.mq_maxmsg = DFLT_MSGMAX; - info->attr.mq_msgsize = DFLT_MSGSIZEMAX; + info->attr.mq_maxmsg = msg_max; + info->attr.mq_msgsize = msgsize_max; if (attr) { info->attr.mq_maxmsg = attr->mq_maxmsg; info->attr.mq_msgsize = attr->mq_msgsize; @@ -1191,11 +1199,11 @@ static struct file_system_type mqueue_fs_type = { .kill_sb = kill_litter_super, }; -static int msg_max_limit_min = DFLT_MSGMAX; -static int msg_max_limit_max = HARD_MSGMAX; +static int msg_max_limit_min = MIN_MSGMAX; +static int msg_max_limit_max = MAX_MSGMAX; -static int msg_maxsize_limit_min = DFLT_MSGSIZEMAX; -static int msg_maxsize_limit_max = INT_MAX; +static int msg_maxsize_limit_min = MIN_MSGSIZEMAX; +static int msg_maxsize_limit_max = MAX_MSGSIZEMAX; static ctl_table mq_sysctls[] = { { |