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switch stat_file() to passing a single struct rather than fsckloads of pointers

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2010-06-06 20:08:56 -04:00
parent 5e2df28cc6
commit 39b743c619
3 changed files with 58 additions and 68 deletions
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75
fs/hostfs/hostfs_user.c
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@@ -19,11 +19,27 @@
#include "user.h"
#include <utime.h>
int stat_file(const char *path, unsigned long long *inode_out, int *mode_out,
int *nlink_out, int *uid_out, int *gid_out,
unsigned long long *size_out, struct timespec *atime_out,
struct timespec *mtime_out, struct timespec *ctime_out,
int *blksize_out, unsigned long long *blocks_out, int fd)
static void stat64_to_hostfs(const struct stat64 *buf, struct hostfs_stat *p)
{
p->ino = buf->st_ino;
p->mode = buf->st_mode;
p->nlink = buf->st_nlink;
p->uid = buf->st_uid;
p->gid = buf->st_gid;
p->size = buf->st_size;
p->atime.tv_sec = buf->st_atime;
p->atime.tv_nsec = 0;
p->ctime.tv_sec = buf->st_ctime;
p->ctime.tv_nsec = 0;
p->mtime.tv_sec = buf->st_mtime;
p->mtime.tv_nsec = 0;
p->blksize = buf->st_blksize;
p->blocks = buf->st_blocks;
p->maj = os_major(buf->st_rdev);
p->min = os_minor(buf->st_rdev);
}
int stat_file(const char *path, struct hostfs_stat *p, int fd)
{
struct stat64 buf;
@@ -33,35 +49,7 @@ int stat_file(const char *path, unsigned long long *inode_out, int *mode_out,
} else if (lstat64(path, &buf) < 0) {
return -errno;
}
if (inode_out != NULL)
*inode_out = buf.st_ino;
if (mode_out != NULL)
*mode_out = buf.st_mode;
if (nlink_out != NULL)
*nlink_out = buf.st_nlink;
if (uid_out != NULL)
*uid_out = buf.st_uid;
if (gid_out != NULL)
*gid_out = buf.st_gid;
if (size_out != NULL)
*size_out = buf.st_size;
if (atime_out != NULL) {
atime_out->tv_sec = buf.st_atime;
atime_out->tv_nsec = 0;
}
if (mtime_out != NULL) {
mtime_out->tv_sec = buf.st_mtime;
mtime_out->tv_nsec = 0;
}
if (ctime_out != NULL) {
ctime_out->tv_sec = buf.st_ctime;
ctime_out->tv_nsec = 0;
}
if (blksize_out != NULL)
*blksize_out = buf.st_blksize;
if (blocks_out != NULL)
*blocks_out = buf.st_blocks;
stat64_to_hostfs(&buf, p);
return 0;
}
@@ -235,8 +223,8 @@ int file_create(char *name, int ur, int uw, int ux, int gr,
int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
{
struct hostfs_stat st;
struct timeval times[2];
struct timespec atime_ts, mtime_ts;
int err, ma;
if (attrs->ia_valid & HOSTFS_ATTR_MODE) {
@@ -279,15 +267,14 @@ int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
*/
ma = (HOSTFS_ATTR_ATIME_SET | HOSTFS_ATTR_MTIME_SET);
if (attrs->ia_valid & ma) {
err = stat_file(file, NULL, NULL, NULL, NULL, NULL, NULL,
&atime_ts, &mtime_ts, NULL, NULL, NULL, fd);
err = stat_file(file, &st, fd);
if (err != 0)
return err;
times[0].tv_sec = atime_ts.tv_sec;
times[0].tv_usec = atime_ts.tv_nsec / 1000;
times[1].tv_sec = mtime_ts.tv_sec;
times[1].tv_usec = mtime_ts.tv_nsec / 1000;
times[0].tv_sec = st.atime.tv_sec;
times[0].tv_usec = st.atime.tv_nsec / 1000;
times[1].tv_sec = st.mtime.tv_sec;
times[1].tv_usec = st.mtime.tv_nsec / 1000;
if (attrs->ia_valid & HOSTFS_ATTR_ATIME_SET) {
times[0].tv_sec = attrs->ia_atime.tv_sec;
@@ -308,9 +295,9 @@ int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
/* Note: ctime is not handled */
if (attrs->ia_valid & (HOSTFS_ATTR_ATIME | HOSTFS_ATTR_MTIME)) {
err = stat_file(file, NULL, NULL, NULL, NULL, NULL, NULL,
&attrs->ia_atime, &attrs->ia_mtime, NULL,
NULL, NULL, fd);
err = stat_file(file, &st, fd);
attrs->ia_atime = st.atime;
attrs->ia_mtime = st.mtime;
if (err != 0)
return err;
}