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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 03:55:31 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 12:48:44 -0500
commit5dfe4c964a0dd7bb3a1d64a4166835a153146207 (patch)
tree2fb2fd8c09922be4f40a5a9ac50b537b1d780e27 /arch/ppc
parent540473208f8ac71c25a87e1a2670c3c18dd4d6db (diff)
[PATCH] mark struct file_operations const 2
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>
Diffstat (limited to 'arch/ppc')
-rw-r--r--arch/ppc/8xx_io/cs4218_tdm.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/ppc/8xx_io/cs4218_tdm.c b/arch/ppc/8xx_io/cs4218_tdm.c
index 684ed04eb8b8..a956f28ab162 100644
--- a/arch/ppc/8xx_io/cs4218_tdm.c
+++ b/arch/ppc/8xx_io/cs4218_tdm.c
@@ -1711,7 +1711,7 @@ static int mixer_ioctl(struct inode *inode, struct file *file, u_int cmd,
1711} 1711}
1712 1712
1713 1713
1714static struct file_operations mixer_fops = 1714static const struct file_operations mixer_fops =
1715{ 1715{
1716 .owner = THIS_MODULE, 1716 .owner = THIS_MODULE,
1717 .llseek = sound_lseek, 1717 .llseek = sound_lseek,
@@ -2298,7 +2298,7 @@ static int sq_ioctl(struct inode *inode, struct file *file, u_int cmd,
2298 2298
2299 2299
2300 2300
2301static struct file_operations sq_fops = 2301static const struct file_operations sq_fops =
2302{ 2302{
2303 .owner = THIS_MODULE, 2303 .owner = THIS_MODULE,
2304 .llseek = sound_lseek, 2304 .llseek = sound_lseek,
@@ -2433,7 +2433,7 @@ static ssize_t state_read(struct file *file, char *buf, size_t count,
2433} 2433}
2434 2434
2435 2435
2436static struct file_operations state_fops = 2436static const struct file_operations state_fops =
2437{ 2437{
2438 .owner = THIS_MODULE, 2438 .owner = THIS_MODULE,
2439 .llseek = sound_lseek, 2439 .llseek = sound_lseek,