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[PATCH] mark struct file_operations const 2

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Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@osdl.org: sparc64 fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arjan van de Ven
2007-02-12 00:55:31 -08:00
committed by Linus Torvalds
parent 540473208f
commit 5dfe4c964a
59 changed files with 94 additions and 94 deletions
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arch/ppc/8xx_io/cs4218_tdm.c
+3 -3
View File
@@ -1711,7 +1711,7 @@ static int mixer_ioctl(struct inode *inode, struct file *file, u_int cmd,
}
static struct file_operations mixer_fops =
static const struct file_operations mixer_fops =
{
.owner = THIS_MODULE,
.llseek = sound_lseek,
@@ -2298,7 +2298,7 @@ static int sq_ioctl(struct inode *inode, struct file *file, u_int cmd,
static struct file_operations sq_fops =
static const struct file_operations sq_fops =
{
.owner = THIS_MODULE,
.llseek = sound_lseek,
@@ -2433,7 +2433,7 @@ static ssize_t state_read(struct file *file, char *buf, size_t count,
}
static struct file_operations state_fops =
static const struct file_operations state_fops =
{
.owner = THIS_MODULE,
.llseek = sound_lseek,