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fs/9p: set the cached file_operations struct during inode init

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With the old code we were not setting the file->f_op
with cached file operations during creat.

(format correction by jvrao@linux.vnet.ibm.com)

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Aneesh Kumar K.V 2011-02-28 17:03:54 +05:30 committed by Eric Van Hensbergen
parent f735195d51
commit 29236f4e18
3 changed files with 15 additions and 16 deletions
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2
fs/9p/v9fs_vfs.h
View File

@ -45,6 +45,8 @@ extern const struct file_operations v9fs_dir_operations;
extern const struct file_operations v9fs_dir_operations_dotl;
extern const struct dentry_operations v9fs_dentry_operations;
extern const struct dentry_operations v9fs_cached_dentry_operations;
extern const struct file_operations v9fs_cached_file_operations;
extern const struct file_operations v9fs_cached_file_operations_dotl;
#ifdef CONFIG_9P_FSCACHE
struct inode *v9fs_alloc_inode(struct super_block *sb);

18
fs/9p/vfs_file.c
View File

@ -44,9 +44,6 @@
#include "fid.h"
#include "cache.h"
static const struct file_operations v9fs_cached_file_operations;
static const struct file_operations v9fs_cached_file_operations_dotl;
/**
* v9fs_file_open - open a file (or directory)
* @inode: inode to be opened
@ -89,19 +86,12 @@ int v9fs_file_open(struct inode *inode, struct file *file)
}
file->private_data = fid;
#ifdef CONFIG_9P_FSCACHE
if ((fid->qid.version) && (v9ses->cache)) {
P9_DPRINTK(P9_DEBUG_VFS, "cached");
/* enable cached file options */
if(file->f_op == &v9fs_file_operations)
file->f_op = &v9fs_cached_file_operations;
else if (file->f_op == &v9fs_file_operations_dotl)
file->f_op = &v9fs_cached_file_operations_dotl;
#ifdef CONFIG_9P_FSCACHE
v9fs_cache_inode_set_cookie(inode, file);
#endif
}
#endif
return 0;
}
@ -505,7 +495,7 @@ int v9fs_file_fsync_dotl(struct file *filp, int datasync)
return retval;
}
static const struct file_operations v9fs_cached_file_operations = {
const struct file_operations v9fs_cached_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
@ -517,7 +507,7 @@ static const struct file_operations v9fs_cached_file_operations = {
.fsync = v9fs_file_fsync,
};
static const struct file_operations v9fs_cached_file_operations_dotl = {
const struct file_operations v9fs_cached_file_operations_dotl = {
.llseek = generic_file_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,

11
fs/9p/vfs_inode.c
View File

@ -292,10 +292,17 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
case S_IFREG:
if (v9fs_proto_dotl(v9ses)) {
inode->i_op = &v9fs_file_inode_operations_dotl;
inode->i_fop = &v9fs_file_operations_dotl;
if (v9ses->cache)
inode->i_fop =
&v9fs_cached_file_operations_dotl;
else
inode->i_fop = &v9fs_file_operations_dotl;
} else {
inode->i_op = &v9fs_file_inode_operations;
inode->i_fop = &v9fs_file_operations;
if (v9ses->cache)
inode->i_fop = &v9fs_cached_file_operations;
else
inode->i_fop = &v9fs_file_operations;
}
break;