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authorSteve French <sfrench@us.ibm.com>2005-12-12 20:53:18 -0800
committerSteve French <sfrench@us.ibm.com>2005-12-12 20:53:18 -0800
commitec637e3ffb6b978143652477c7c5f96c9519b691 (patch)
tree32533b8f101e1d85b3499050eef29e78480e5cae /fs/cifs/cifs_debug.c
parentc89a86bb96307019867d11874ef0b86adaa0598e (diff)
[CIFS] Avoid extra large buffer allocation (and memcpy) in cifs_readpages
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifs_debug.c')
-rw-r--r--fs/cifs/cifs_debug.c39
1 files changed, 19 insertions, 20 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 6f5d81f5eac..f4124a32bef 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -401,8 +401,8 @@ static read_proc_t ntlmv2_enabled_read;
static write_proc_t ntlmv2_enabled_write;
static read_proc_t packet_signing_enabled_read;
static write_proc_t packet_signing_enabled_write;
-static read_proc_t quotaEnabled_read;
-static write_proc_t quotaEnabled_write;
+static read_proc_t experimEnabled_read;
+static write_proc_t experimEnabled_write;
static read_proc_t linuxExtensionsEnabled_read;
static write_proc_t linuxExtensionsEnabled_write;
@@ -442,9 +442,9 @@ cifs_proc_init(void)
pde->write_proc = oplockEnabled_write;
pde = create_proc_read_entry("Experimental", 0, proc_fs_cifs,
- quotaEnabled_read, NULL);
+ experimEnabled_read, NULL);
if (pde)
- pde->write_proc = quotaEnabled_write;
+ pde->write_proc = experimEnabled_write;
pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs,
linuxExtensionsEnabled_read, NULL);
@@ -586,14 +586,13 @@ oplockEnabled_write(struct file *file, const char __user *buffer,
}
static int
-quotaEnabled_read(char *page, char **start, off_t off,
+experimEnabled_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
int len;
len = sprintf(page, "%d\n", experimEnabled);
-/* could also check if quotas are enabled in kernel
- as a whole first */
+
len -= off;
*start = page + off;
@@ -608,21 +607,23 @@ quotaEnabled_read(char *page, char **start, off_t off,
return len;
}
static int
-quotaEnabled_write(struct file *file, const char __user *buffer,
+experimEnabled_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
- char c;
- int rc;
+ char c;
+ int rc;
- rc = get_user(c, buffer);
- if (rc)
- return rc;
- if (c == '0' || c == 'n' || c == 'N')
- experimEnabled = 0;
- else if (c == '1' || c == 'y' || c == 'Y')
- experimEnabled = 1;
+ rc = get_user(c, buffer);
+ if (rc)
+ return rc;
+ if (c == '0' || c == 'n' || c == 'N')
+ experimEnabled = 0;
+ else if (c == '1' || c == 'y' || c == 'Y')
+ experimEnabled = 1;
+ else if (c == '2')
+ experimEnabled = 2;
- return count;
+ return count;
}
static int
@@ -632,8 +633,6 @@ linuxExtensionsEnabled_read(char *page, char **start, off_t off,
int len;
len = sprintf(page, "%d\n", linuxExtEnabled);
-/* could also check if quotas are enabled in kernel
- as a whole first */
len -= off;
*start = page + off;