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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 00:55:31 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:44 -0800
commit5dfe4c964a0dd7bb3a1d64a4166835a153146207 (patch)
tree2fb2fd8c09922be4f40a5a9ac50b537b1d780e27 /arch/ppc/8xx_io
parent[PATCH] mark struct file_operations const 1 (diff)
downloadlinux-dev-5dfe4c964a0dd7bb3a1d64a4166835a153146207.tar.xz
linux-dev-5dfe4c964a0dd7bb3a1d64a4166835a153146207.zip
[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/8xx_io')
-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,
}
-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,