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authorZhang Yanfei <zhangyanfei@cn.fujitsu.com>2013-02-22 16:35:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-23 17:50:22 -0800
commit697ce9be7d5c78d6a53dee15f5574f7398cba05c (patch)
tree5d796874cb19a7c6de1000525e86e8d15cf358d4 /fs
parent43be594a6b0ce34ab5fa3b13e08727a99fb95b91 (diff)
fs/nfsd: change type of max_delegations, nfsd_drc_max_mem and nfsd_drc_mem_used
The three variables are calculated from nr_free_buffer_pages so change their types to unsigned long in case of overflow. Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfsd/nfs4state.c6
-rw-r--r--fs/nfsd/nfsd.h6
-rw-r--r--fs/nfsd/nfssvc.c6
3 files changed, 9 insertions, 9 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index ac8ed96c4199..499e957510e7 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -151,7 +151,7 @@ get_nfs4_file(struct nfs4_file *fi)
}
static int num_delegations;
-unsigned int max_delegations;
+unsigned long max_delegations;
/*
* Open owner state (share locks)
@@ -700,8 +700,8 @@ static int nfsd4_get_drc_mem(int slotsize, u32 num)
num = min_t(u32, num, NFSD_MAX_SLOTS_PER_SESSION);
spin_lock(&nfsd_drc_lock);
- avail = min_t(int, NFSD_MAX_MEM_PER_SESSION,
- nfsd_drc_max_mem - nfsd_drc_mem_used);
+ avail = min((unsigned long)NFSD_MAX_MEM_PER_SESSION,
+ nfsd_drc_max_mem - nfsd_drc_mem_used);
num = min_t(int, num, avail / slotsize);
nfsd_drc_mem_used += num * slotsize;
spin_unlock(&nfsd_drc_lock);
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index de23db255c69..07a473fd49bc 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -56,8 +56,8 @@ extern struct svc_version nfsd_version2, nfsd_version3,
extern u32 nfsd_supported_minorversion;
extern struct mutex nfsd_mutex;
extern spinlock_t nfsd_drc_lock;
-extern unsigned int nfsd_drc_max_mem;
-extern unsigned int nfsd_drc_mem_used;
+extern unsigned long nfsd_drc_max_mem;
+extern unsigned long nfsd_drc_mem_used;
extern const struct seq_operations nfs_exports_op;
@@ -106,7 +106,7 @@ static inline int nfsd_v4client(struct svc_rqst *rq)
* NFSv4 State
*/
#ifdef CONFIG_NFSD_V4
-extern unsigned int max_delegations;
+extern unsigned long max_delegations;
void nfs4_state_init(void);
int nfsd4_init_slabs(void);
void nfsd4_free_slabs(void);
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index cee62ab9d4a3..be7af509930c 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -59,8 +59,8 @@ DEFINE_MUTEX(nfsd_mutex);
* nfsd_drc_pages_used tracks the current version 4.1 DRC memory usage.
*/
spinlock_t nfsd_drc_lock;
-unsigned int nfsd_drc_max_mem;
-unsigned int nfsd_drc_mem_used;
+unsigned long nfsd_drc_max_mem;
+unsigned long nfsd_drc_mem_used;
#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
static struct svc_stat nfsd_acl_svcstats;
@@ -342,7 +342,7 @@ static void set_max_drc(void)
>> NFSD_DRC_SIZE_SHIFT) * PAGE_SIZE;
nfsd_drc_mem_used = 0;
spin_lock_init(&nfsd_drc_lock);
- dprintk("%s nfsd_drc_max_mem %u \n", __func__, nfsd_drc_max_mem);
+ dprintk("%s nfsd_drc_max_mem %lu \n", __func__, nfsd_drc_max_mem);
}
static int nfsd_get_default_max_blksize(void)