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9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch]

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All these functions use the v9fs_co_run_in_worker() macro, and thus always
call qemu_coroutine_self() and qemu_coroutine_yield().

Let's mark them to make it obvious they execute in coroutine context.

Signed-off-by: Greg Kurz <groug@kaod.org>
This commit is contained in:
Greg Kurz 2016-10-17 14:13:58 +02:00
parent bc70a5925f
commit 5bdade6621
5 changed files with 109 additions and 95 deletions
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17
hw/9pfs/codir.c
View File

@ -17,7 +17,8 @@
#include "qemu/coroutine.h"
#include "coth.h"
int v9fs_co_readdir(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent **dent)
int coroutine_fn v9fs_co_readdir(V9fsPDU *pdu, V9fsFidState *fidp,
struct dirent **dent)
{
int err;
V9fsState *s = pdu->s;
@ -59,7 +60,8 @@ off_t v9fs_co_telldir(V9fsPDU *pdu, V9fsFidState *fidp)
return err;
}
void v9fs_co_seekdir(V9fsPDU *pdu, V9fsFidState *fidp, off_t offset)
void coroutine_fn v9fs_co_seekdir(V9fsPDU *pdu, V9fsFidState *fidp,
off_t offset)
{
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
@ -71,7 +73,7 @@ void v9fs_co_seekdir(V9fsPDU *pdu, V9fsFidState *fidp, off_t offset)
});
}
void v9fs_co_rewinddir(V9fsPDU *pdu, V9fsFidState *fidp)
void coroutine_fn v9fs_co_rewinddir(V9fsPDU *pdu, V9fsFidState *fidp)
{
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
@ -83,8 +85,9 @@ void v9fs_co_rewinddir(V9fsPDU *pdu, V9fsFidState *fidp)
});
}
int v9fs_co_mkdir(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name,
mode_t mode, uid_t uid, gid_t gid, struct stat *stbuf)
int coroutine_fn v9fs_co_mkdir(V9fsPDU *pdu, V9fsFidState *fidp,
V9fsString *name, mode_t mode, uid_t uid,
gid_t gid, struct stat *stbuf)
{
int err;
FsCred cred;
@ -120,7 +123,7 @@ int v9fs_co_mkdir(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name,
return err;
}
int v9fs_co_opendir(V9fsPDU *pdu, V9fsFidState *fidp)
int coroutine_fn v9fs_co_opendir(V9fsPDU *pdu, V9fsFidState *fidp)
{
int err;
V9fsState *s = pdu->s;
@ -148,7 +151,7 @@ int v9fs_co_opendir(V9fsPDU *pdu, V9fsFidState *fidp)
return err;
}
int v9fs_co_closedir(V9fsPDU *pdu, V9fsFidOpenState *fs)
int coroutine_fn v9fs_co_closedir(V9fsPDU *pdu, V9fsFidOpenState *fs)
{
int err;
V9fsState *s = pdu->s;

32
hw/9pfs/cofile.c
View File

@ -17,8 +17,8 @@
#include "qemu/coroutine.h"
#include "coth.h"
int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t st_mode,
V9fsStatDotl *v9stat)
int coroutine_fn v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t st_mode,
V9fsStatDotl *v9stat)
{
int err = 0;
V9fsState *s = pdu->s;
@ -41,7 +41,7 @@ int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t st_mode,
return err;
}
int v9fs_co_lstat(V9fsPDU *pdu, V9fsPath *path, struct stat *stbuf)
int coroutine_fn v9fs_co_lstat(V9fsPDU *pdu, V9fsPath *path, struct stat *stbuf)
{
int err;
V9fsState *s = pdu->s;
@ -61,7 +61,8 @@ int v9fs_co_lstat(V9fsPDU *pdu, V9fsPath *path, struct stat *stbuf)
return err;
}
int v9fs_co_fstat(V9fsPDU *pdu, V9fsFidState *fidp, struct stat *stbuf)
int coroutine_fn v9fs_co_fstat(V9fsPDU *pdu, V9fsFidState *fidp,
struct stat *stbuf)
{
int err;
V9fsState *s = pdu->s;
@ -93,7 +94,7 @@ int v9fs_co_fstat(V9fsPDU *pdu, V9fsFidState *fidp, struct stat *stbuf)
return err;
}
int v9fs_co_open(V9fsPDU *pdu, V9fsFidState *fidp, int flags)
int coroutine_fn v9fs_co_open(V9fsPDU *pdu, V9fsFidState *fidp, int flags)
{
int err;
V9fsState *s = pdu->s;
@ -121,8 +122,9 @@ int v9fs_co_open(V9fsPDU *pdu, V9fsFidState *fidp, int flags)
return err;
}
int v9fs_co_open2(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, gid_t gid,
int flags, int mode, struct stat *stbuf)
int coroutine_fn v9fs_co_open2(V9fsPDU *pdu, V9fsFidState *fidp,
V9fsString *name, gid_t gid, int flags, int mode,
struct stat *stbuf)
{
int err;
FsCred cred;
@ -175,7 +177,7 @@ int v9fs_co_open2(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, gid_t gid,
return err;
}
int v9fs_co_close(V9fsPDU *pdu, V9fsFidOpenState *fs)
int coroutine_fn v9fs_co_close(V9fsPDU *pdu, V9fsFidOpenState *fs)
{
int err;
V9fsState *s = pdu->s;
@ -196,7 +198,7 @@ int v9fs_co_close(V9fsPDU *pdu, V9fsFidOpenState *fs)
return err;
}
int v9fs_co_fsync(V9fsPDU *pdu, V9fsFidState *fidp, int datasync)
int coroutine_fn v9fs_co_fsync(V9fsPDU *pdu, V9fsFidState *fidp, int datasync)
{
int err;
V9fsState *s = pdu->s;
@ -214,8 +216,8 @@ int v9fs_co_fsync(V9fsPDU *pdu, V9fsFidState *fidp, int datasync)
return err;
}
int v9fs_co_link(V9fsPDU *pdu, V9fsFidState *oldfid,
V9fsFidState *newdirfid, V9fsString *name)
int coroutine_fn v9fs_co_link(V9fsPDU *pdu, V9fsFidState *oldfid,
V9fsFidState *newdirfid, V9fsString *name)
{
int err;
V9fsState *s = pdu->s;
@ -236,8 +238,8 @@ int v9fs_co_link(V9fsPDU *pdu, V9fsFidState *oldfid,
return err;
}
int v9fs_co_pwritev(V9fsPDU *pdu, V9fsFidState *fidp,
struct iovec *iov, int iovcnt, int64_t offset)
int coroutine_fn v9fs_co_pwritev(V9fsPDU *pdu, V9fsFidState *fidp,
struct iovec *iov, int iovcnt, int64_t offset)
{
int err;
V9fsState *s = pdu->s;
@ -255,8 +257,8 @@ int v9fs_co_pwritev(V9fsPDU *pdu, V9fsFidState *fidp,
return err;
}
int v9fs_co_preadv(V9fsPDU *pdu, V9fsFidState *fidp,
struct iovec *iov, int iovcnt, int64_t offset)
int coroutine_fn v9fs_co_preadv(V9fsPDU *pdu, V9fsFidState *fidp,
struct iovec *iov, int iovcnt, int64_t offset)
{
int err;
V9fsState *s = pdu->s;

43
hw/9pfs/cofs.c
View File

@ -49,7 +49,7 @@ static ssize_t __readlink(V9fsState *s, V9fsPath *path, V9fsString *buf)
return len;
}
int v9fs_co_readlink(V9fsPDU *pdu, V9fsPath *path, V9fsString *buf)
int coroutine_fn v9fs_co_readlink(V9fsPDU *pdu, V9fsPath *path, V9fsString *buf)
{
int err;
V9fsState *s = pdu->s;
@ -69,7 +69,8 @@ int v9fs_co_readlink(V9fsPDU *pdu, V9fsPath *path, V9fsString *buf)
return err;
}
int v9fs_co_statfs(V9fsPDU *pdu, V9fsPath *path, struct statfs *stbuf)
int coroutine_fn v9fs_co_statfs(V9fsPDU *pdu, V9fsPath *path,
struct statfs *stbuf)
{
int err;
V9fsState *s = pdu->s;
@ -89,7 +90,7 @@ int v9fs_co_statfs(V9fsPDU *pdu, V9fsPath *path, struct statfs *stbuf)
return err;
}
int v9fs_co_chmod(V9fsPDU *pdu, V9fsPath *path, mode_t mode)
int coroutine_fn v9fs_co_chmod(V9fsPDU *pdu, V9fsPath *path, mode_t mode)
{
int err;
FsCred cred;
@ -112,8 +113,8 @@ int v9fs_co_chmod(V9fsPDU *pdu, V9fsPath *path, mode_t mode)
return err;
}
int v9fs_co_utimensat(V9fsPDU *pdu, V9fsPath *path,
struct timespec times[2])
int coroutine_fn v9fs_co_utimensat(V9fsPDU *pdu, V9fsPath *path,
struct timespec times[2])
{
int err;
V9fsState *s = pdu->s;
@ -133,7 +134,8 @@ int v9fs_co_utimensat(V9fsPDU *pdu, V9fsPath *path,
return err;
}
int v9fs_co_chown(V9fsPDU *pdu, V9fsPath *path, uid_t uid, gid_t gid)
int coroutine_fn v9fs_co_chown(V9fsPDU *pdu, V9fsPath *path, uid_t uid,
gid_t gid)
{
int err;
FsCred cred;
@ -157,7 +159,7 @@ int v9fs_co_chown(V9fsPDU *pdu, V9fsPath *path, uid_t uid, gid_t gid)
return err;
}
int v9fs_co_truncate(V9fsPDU *pdu, V9fsPath *path, off_t size)
int coroutine_fn v9fs_co_truncate(V9fsPDU *pdu, V9fsPath *path, off_t size)
{
int err;
V9fsState *s = pdu->s;
@ -177,8 +179,9 @@ int v9fs_co_truncate(V9fsPDU *pdu, V9fsPath *path, off_t size)
return err;
}
int v9fs_co_mknod(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, uid_t uid,
gid_t gid, dev_t dev, mode_t mode, struct stat *stbuf)
int coroutine_fn v9fs_co_mknod(V9fsPDU *pdu, V9fsFidState *fidp,
V9fsString *name, uid_t uid, gid_t gid,
dev_t dev, mode_t mode, struct stat *stbuf)
{
int err;
V9fsPath path;
@ -216,7 +219,7 @@ int v9fs_co_mknod(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, uid_t uid,
}
/* Only works with path name based fid */
int v9fs_co_remove(V9fsPDU *pdu, V9fsPath *path)
int coroutine_fn v9fs_co_remove(V9fsPDU *pdu, V9fsPath *path)
{
int err;
V9fsState *s = pdu->s;
@ -236,7 +239,8 @@ int v9fs_co_remove(V9fsPDU *pdu, V9fsPath *path)
return err;
}
int v9fs_co_unlinkat(V9fsPDU *pdu, V9fsPath *path, V9fsString *name, int flags)
int coroutine_fn v9fs_co_unlinkat(V9fsPDU *pdu, V9fsPath *path,
V9fsString *name, int flags)
{
int err;
V9fsState *s = pdu->s;
@ -257,7 +261,8 @@ int v9fs_co_unlinkat(V9fsPDU *pdu, V9fsPath *path, V9fsString *name, int flags)
}
/* Only work with path name based fid */
int v9fs_co_rename(V9fsPDU *pdu, V9fsPath *oldpath, V9fsPath *newpath)
int coroutine_fn v9fs_co_rename(V9fsPDU *pdu, V9fsPath *oldpath,
V9fsPath *newpath)
{
int err;
V9fsState *s = pdu->s;
@ -275,8 +280,9 @@ int v9fs_co_rename(V9fsPDU *pdu, V9fsPath *oldpath, V9fsPath *newpath)
return err;
}
int v9fs_co_renameat(V9fsPDU *pdu, V9fsPath *olddirpath, V9fsString *oldname,
V9fsPath *newdirpath, V9fsString *newname)
int coroutine_fn v9fs_co_renameat(V9fsPDU *pdu, V9fsPath *olddirpath,
V9fsString *oldname, V9fsPath *newdirpath,
V9fsString *newname)
{
int err;
V9fsState *s = pdu->s;
@ -295,8 +301,9 @@ int v9fs_co_renameat(V9fsPDU *pdu, V9fsPath *olddirpath, V9fsString *oldname,
return err;
}
int v9fs_co_symlink(V9fsPDU *pdu, V9fsFidState *dfidp, V9fsString *name,
const char *oldpath, gid_t gid, struct stat *stbuf)
int coroutine_fn v9fs_co_symlink(V9fsPDU *pdu, V9fsFidState *dfidp,
V9fsString *name, const char *oldpath,
gid_t gid, struct stat *stbuf)
{
int err;
FsCred cred;
@ -337,8 +344,8 @@ int v9fs_co_symlink(V9fsPDU *pdu, V9fsFidState *dfidp, V9fsString *name,
* For path name based fid we don't block. So we can
* directly call the fs driver ops.
*/
int v9fs_co_name_to_path(V9fsPDU *pdu, V9fsPath *dirpath,
const char *name, V9fsPath *path)
int coroutine_fn v9fs_co_name_to_path(V9fsPDU *pdu, V9fsPath *dirpath,
const char *name, V9fsPath *path)
{
int err;
V9fsState *s = pdu->s;

93
hw/9pfs/coth.h
View File

@ -48,51 +48,52 @@
} while (0)
void co_run_in_worker_bh(void *);
int v9fs_co_readlink(V9fsPDU *, V9fsPath *, V9fsString *);
int v9fs_co_readdir(V9fsPDU *, V9fsFidState *, struct dirent **);
off_t v9fs_co_telldir(V9fsPDU *, V9fsFidState *);
void v9fs_co_seekdir(V9fsPDU *, V9fsFidState *, off_t);
void v9fs_co_rewinddir(V9fsPDU *, V9fsFidState *);
int v9fs_co_statfs(V9fsPDU *, V9fsPath *, struct statfs *);
int v9fs_co_lstat(V9fsPDU *, V9fsPath *, struct stat *);
int v9fs_co_chmod(V9fsPDU *, V9fsPath *, mode_t);
int v9fs_co_utimensat(V9fsPDU *, V9fsPath *, struct timespec [2]);
int v9fs_co_chown(V9fsPDU *, V9fsPath *, uid_t, gid_t);
int v9fs_co_truncate(V9fsPDU *, V9fsPath *, off_t);
int v9fs_co_llistxattr(V9fsPDU *, V9fsPath *, void *, size_t);
int v9fs_co_lgetxattr(V9fsPDU *, V9fsPath *,
V9fsString *, void *, size_t);
int v9fs_co_mknod(V9fsPDU *, V9fsFidState *, V9fsString *, uid_t,
gid_t, dev_t, mode_t, struct stat *);
int v9fs_co_mkdir(V9fsPDU *, V9fsFidState *, V9fsString *,
mode_t, uid_t, gid_t, struct stat *);
int v9fs_co_remove(V9fsPDU *, V9fsPath *);
int v9fs_co_rename(V9fsPDU *, V9fsPath *, V9fsPath *);
int v9fs_co_unlinkat(V9fsPDU *, V9fsPath *, V9fsString *, int flags);
int v9fs_co_renameat(V9fsPDU *, V9fsPath *, V9fsString *,
V9fsPath *, V9fsString *);
int v9fs_co_fstat(V9fsPDU *, V9fsFidState *, struct stat *);
int v9fs_co_opendir(V9fsPDU *, V9fsFidState *);
int v9fs_co_open(V9fsPDU *, V9fsFidState *, int);
int v9fs_co_open2(V9fsPDU *, V9fsFidState *, V9fsString *,
gid_t, int, int, struct stat *);
int v9fs_co_lsetxattr(V9fsPDU *, V9fsPath *, V9fsString *,
void *, size_t, int);
int v9fs_co_lremovexattr(V9fsPDU *, V9fsPath *, V9fsString *);
int v9fs_co_closedir(V9fsPDU *, V9fsFidOpenState *);
int v9fs_co_close(V9fsPDU *, V9fsFidOpenState *);
int v9fs_co_fsync(V9fsPDU *, V9fsFidState *, int);
int v9fs_co_symlink(V9fsPDU *, V9fsFidState *, V9fsString *,
const char *, gid_t, struct stat *);
int v9fs_co_link(V9fsPDU *, V9fsFidState *,
V9fsFidState *, V9fsString *);
int v9fs_co_pwritev(V9fsPDU *, V9fsFidState *,
struct iovec *, int, int64_t);
int v9fs_co_preadv(V9fsPDU *, V9fsFidState *,
struct iovec *, int, int64_t);
int v9fs_co_name_to_path(V9fsPDU *, V9fsPath *,
const char *, V9fsPath *);
int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t,
V9fsStatDotl *v9stat);
int coroutine_fn v9fs_co_readlink(V9fsPDU *, V9fsPath *, V9fsString *);
int coroutine_fn v9fs_co_readdir(V9fsPDU *, V9fsFidState *, struct dirent **);
off_t coroutine_fn v9fs_co_telldir(V9fsPDU *, V9fsFidState *);
void coroutine_fn v9fs_co_seekdir(V9fsPDU *, V9fsFidState *, off_t);
void coroutine_fn v9fs_co_rewinddir(V9fsPDU *, V9fsFidState *);
int coroutine_fn v9fs_co_statfs(V9fsPDU *, V9fsPath *, struct statfs *);
int coroutine_fn v9fs_co_lstat(V9fsPDU *, V9fsPath *, struct stat *);
int coroutine_fn v9fs_co_chmod(V9fsPDU *, V9fsPath *, mode_t);
int coroutine_fn v9fs_co_utimensat(V9fsPDU *, V9fsPath *, struct timespec [2]);
int coroutine_fn v9fs_co_chown(V9fsPDU *, V9fsPath *, uid_t, gid_t);
int coroutine_fn v9fs_co_truncate(V9fsPDU *, V9fsPath *, off_t);
int coroutine_fn v9fs_co_llistxattr(V9fsPDU *, V9fsPath *, void *, size_t);
int coroutine_fn v9fs_co_lgetxattr(V9fsPDU *, V9fsPath *,
V9fsString *, void *, size_t);
int coroutine_fn v9fs_co_mknod(V9fsPDU *, V9fsFidState *, V9fsString *, uid_t,
gid_t, dev_t, mode_t, struct stat *);
int coroutine_fn v9fs_co_mkdir(V9fsPDU *, V9fsFidState *, V9fsString *,
mode_t, uid_t, gid_t, struct stat *);
int coroutine_fn v9fs_co_remove(V9fsPDU *, V9fsPath *);
int coroutine_fn v9fs_co_rename(V9fsPDU *, V9fsPath *, V9fsPath *);
int coroutine_fn v9fs_co_unlinkat(V9fsPDU *, V9fsPath *, V9fsString *,
int flags);
int coroutine_fn v9fs_co_renameat(V9fsPDU *, V9fsPath *, V9fsString *,
V9fsPath *, V9fsString *);
int coroutine_fn v9fs_co_fstat(V9fsPDU *, V9fsFidState *, struct stat *);
int coroutine_fn v9fs_co_opendir(V9fsPDU *, V9fsFidState *);
int coroutine_fn v9fs_co_open(V9fsPDU *, V9fsFidState *, int);
int coroutine_fn v9fs_co_open2(V9fsPDU *, V9fsFidState *, V9fsString *,
gid_t, int, int, struct stat *);
int coroutine_fn v9fs_co_lsetxattr(V9fsPDU *, V9fsPath *, V9fsString *,
void *, size_t, int);
int coroutine_fn v9fs_co_lremovexattr(V9fsPDU *, V9fsPath *, V9fsString *);
int coroutine_fn v9fs_co_closedir(V9fsPDU *, V9fsFidOpenState *);
int coroutine_fn v9fs_co_close(V9fsPDU *, V9fsFidOpenState *);
int coroutine_fn v9fs_co_fsync(V9fsPDU *, V9fsFidState *, int);
int coroutine_fn v9fs_co_symlink(V9fsPDU *, V9fsFidState *, V9fsString *,
const char *, gid_t, struct stat *);
int coroutine_fn v9fs_co_link(V9fsPDU *, V9fsFidState *,
V9fsFidState *, V9fsString *);
int coroutine_fn v9fs_co_pwritev(V9fsPDU *, V9fsFidState *,
struct iovec *, int, int64_t);
int coroutine_fn v9fs_co_preadv(V9fsPDU *, V9fsFidState *,
struct iovec *, int, int64_t);
int coroutine_fn v9fs_co_name_to_path(V9fsPDU *, V9fsPath *,
const char *, V9fsPath *);
int coroutine_fn v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t,
V9fsStatDotl *v9stat);
#endif

19
hw/9pfs/coxattr.c
View File

@ -17,7 +17,8 @@
#include "qemu/coroutine.h"
#include "coth.h"
int v9fs_co_llistxattr(V9fsPDU *pdu, V9fsPath *path, void *value, size_t size)
int coroutine_fn v9fs_co_llistxattr(V9fsPDU *pdu, V9fsPath *path, void *value,
size_t size)
{
int err;
V9fsState *s = pdu->s;
@ -37,9 +38,9 @@ int v9fs_co_llistxattr(V9fsPDU *pdu, V9fsPath *path, void *value, size_t size)
return err;
}
int v9fs_co_lgetxattr(V9fsPDU *pdu, V9fsPath *path,
V9fsString *xattr_name,
void *value, size_t size)
int coroutine_fn v9fs_co_lgetxattr(V9fsPDU *pdu, V9fsPath *path,
V9fsString *xattr_name, void *value,
size_t size)
{
int err;
V9fsState *s = pdu->s;
@ -61,9 +62,9 @@ int v9fs_co_lgetxattr(V9fsPDU *pdu, V9fsPath *path,
return err;
}
int v9fs_co_lsetxattr(V9fsPDU *pdu, V9fsPath *path,
V9fsString *xattr_name, void *value,
size_t size, int flags)
int coroutine_fn v9fs_co_lsetxattr(V9fsPDU *pdu, V9fsPath *path,
V9fsString *xattr_name, void *value,
size_t size, int flags)
{
int err;
V9fsState *s = pdu->s;
@ -85,8 +86,8 @@ int v9fs_co_lsetxattr(V9fsPDU *pdu, V9fsPath *path,
return err;
}
int v9fs_co_lremovexattr(V9fsPDU *pdu, V9fsPath *path,
V9fsString *xattr_name)
int coroutine_fn v9fs_co_lremovexattr(V9fsPDU *pdu, V9fsPath *path,
V9fsString *xattr_name)
{
int err;
V9fsState *s = pdu->s;