| Message ID | 7a29e2f807a9800f515b91e60c3a732b3abbd097.1557093245.git.qemu_oss@crudebyte.com |
|---|---|
| State | New |
| Headers | show |
| Series | 9p: Fix file ID collisions | expand |
On Tue, Apr 23, 2019 at 01:35:23PM +0200, Christian Schoenebeck via Qemu-devel wrote: > Addresses trivial changes regarding the previous patch as requested > on the mailing list a while ago. These changes should just be made to the original 4 patches individually rather than in a new patch. > > * Removed unneccessary parantheses: > https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02661.html > > * Removed unneccessary g_malloc() result checks: > https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02814.html > > * Unsigned type changes: > https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02581.html > > Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com> > --- > fsdev/9p-marshal.h | 2 +- > hw/9pfs/9p.c | 16 +++++----------- > hw/9pfs/trace-events | 14 +++++++------- > 3 files changed, 13 insertions(+), 19 deletions(-) > > diff --git a/fsdev/9p-marshal.h b/fsdev/9p-marshal.h > index d1ad3645c4..8f3babb60a 100644 > --- a/fsdev/9p-marshal.h > +++ b/fsdev/9p-marshal.h > @@ -9,7 +9,7 @@ typedef struct V9fsString > > typedef struct V9fsQID > { > - int8_t type; > + uint8_t type; > uint32_t version; > uint64_t path; > } V9fsQID; > diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c > index b9bbdcbaee..2b893e25a1 100644 > --- a/hw/9pfs/9p.c > +++ b/hw/9pfs/9p.c > @@ -587,13 +587,13 @@ static uint32_t qpf_hash(QpfEntry e) > static bool qpp_cmp_func(const void *obj, const void *userp) > { > const QppEntry *e1 = obj, *e2 = userp; > - return (e1->dev == e2->dev) && (e1->ino_prefix == e2->ino_prefix); > + return e1->dev == e2->dev && e1->ino_prefix == e2->ino_prefix; > } > > static bool qpf_cmp_func(const void *obj, const void *userp) > { > const QpfEntry *e1 = obj, *e2 = userp; > - return (e1->dev == e2->dev) && (e1->ino == e2->ino); > + return e1->dev == e2->dev && e1->ino == e2->ino; > } > > static void qp_table_remove(void *p, uint32_t h, void *up) > @@ -630,9 +630,6 @@ static int qid_path_fullmap(V9fsPDU *pdu, const struct stat *stbuf, > } > > val = g_malloc0(sizeof(QppEntry)); > - if (!val) { > - return -ENOMEM; > - } > *val = lookup; > > /* new unique inode and device combo */ > @@ -673,9 +670,6 @@ static int qid_path_prefixmap(V9fsPDU *pdu, const struct stat *stbuf, > } > > val = g_malloc0(sizeof(QppEntry)); > - if (!val) { > - return -ENOMEM; > - } > *val = lookup; > > /* new unique inode prefix and device combo */ > @@ -870,9 +864,9 @@ static int donttouch_stat(V9fsStat *stat) > { > if (stat->type == -1 && > stat->dev == -1 && > - stat->qid.type == -1 && > - stat->qid.version == -1 && > - stat->qid.path == -1 && > + stat->qid.type == 0xff && > + stat->qid.version == (uint32_t) -1 && > + stat->qid.path == (uint64_t) -1 && > stat->mode == -1 && > stat->atime == -1 && > stat->mtime == -1 && > diff --git a/hw/9pfs/trace-events b/hw/9pfs/trace-events > index c0a0a4ab5d..6964756922 100644 > --- a/hw/9pfs/trace-events > +++ b/hw/9pfs/trace-events > @@ -6,7 +6,7 @@ v9fs_rerror(uint16_t tag, uint8_t id, int err) "tag %d id %d err %d" > v9fs_version(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s" > v9fs_version_return(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s" > v9fs_attach(uint16_t tag, uint8_t id, int32_t fid, int32_t afid, char* uname, char* aname) "tag %u id %u fid %d afid %d uname %s aname %s" > -v9fs_attach_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d type %d version %d path %"PRId64 > +v9fs_attach_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d type %d version %d path %"PRId64 > v9fs_stat(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" > v9fs_stat_return(uint16_t tag, uint8_t id, int32_t mode, int32_t atime, int32_t mtime, int64_t length) "tag %d id %d stat={mode %d atime %d mtime %d length %"PRId64"}" > v9fs_getattr(uint16_t tag, uint8_t id, int32_t fid, uint64_t request_mask) "tag %d id %d fid %d request_mask %"PRIu64 > @@ -14,9 +14,9 @@ v9fs_getattr_return(uint16_t tag, uint8_t id, uint64_t result_mask, uint32_t mod > v9fs_walk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, uint16_t nwnames) "tag %d id %d fid %d newfid %d nwnames %d" > v9fs_walk_return(uint16_t tag, uint8_t id, uint16_t nwnames, void* qids) "tag %d id %d nwnames %d qids %p" > v9fs_open(uint16_t tag, uint8_t id, int32_t fid, int32_t mode) "tag %d id %d fid %d mode %d" > -v9fs_open_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > +v9fs_open_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > v9fs_lcreate(uint16_t tag, uint8_t id, int32_t dfid, int32_t flags, int32_t mode, uint32_t gid) "tag %d id %d dfid %d flags %d mode %d gid %u" > -v9fs_lcreate_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int32_t iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > +v9fs_lcreate_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int32_t iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > v9fs_fsync(uint16_t tag, uint8_t id, int32_t fid, int datasync) "tag %d id %d fid %d datasync %d" > v9fs_clunk(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" > v9fs_read(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t max_count) "tag %d id %d fid %d off %"PRIu64" max_count %u" > @@ -26,21 +26,21 @@ v9fs_readdir_return(uint16_t tag, uint8_t id, uint32_t count, ssize_t retval) "t > v9fs_write(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t count, int cnt) "tag %d id %d fid %d off %"PRIu64" count %u cnt %d" > v9fs_write_return(uint16_t tag, uint8_t id, int32_t total, ssize_t err) "tag %d id %d total %d err %zd" > v9fs_create(uint16_t tag, uint8_t id, int32_t fid, char* name, int32_t perm, int8_t mode) "tag %d id %d fid %d name %s perm %d mode %d" > -v9fs_create_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > +v9fs_create_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > v9fs_symlink(uint16_t tag, uint8_t id, int32_t fid, char* name, char* symname, uint32_t gid) "tag %d id %d fid %d name %s symname %s gid %u" > -v9fs_symlink_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > +v9fs_symlink_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > v9fs_flush(uint16_t tag, uint8_t id, int16_t flush_tag) "tag %d id %d flush_tag %d" > v9fs_link(uint16_t tag, uint8_t id, int32_t dfid, int32_t oldfid, char* name) "tag %d id %d dfid %d oldfid %d name %s" > v9fs_remove(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" > v9fs_wstat(uint16_t tag, uint8_t id, int32_t fid, int32_t mode, int32_t atime, int32_t mtime) "tag %u id %u fid %d stat={mode %d atime %d mtime %d}" > v9fs_mknod(uint16_t tag, uint8_t id, int32_t fid, int mode, int major, int minor) "tag %d id %d fid %d mode %d major %d minor %d" > -v9fs_mknod_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > +v9fs_mknod_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > v9fs_lock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length) "tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64 > v9fs_lock_return(uint16_t tag, uint8_t id, int8_t status) "tag %d id %d status %d" > v9fs_getlock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length)"tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64 > v9fs_getlock_return(uint16_t tag, uint8_t id, uint8_t type, uint64_t start, uint64_t length, uint32_t proc_id) "tag %d id %d type %d start %"PRIu64" length %"PRIu64" proc_id %u" > v9fs_mkdir(uint16_t tag, uint8_t id, int32_t fid, char* name, int mode, uint32_t gid) "tag %u id %u fid %d name %s mode %d gid %u" > -v9fs_mkdir_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int err) "tag %u id %u qid={type %d version %d path %"PRId64"} err %d" > +v9fs_mkdir_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int err) "tag %u id %u qid={type %d version %d path %"PRId64"} err %d" > v9fs_xattrwalk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, char* name) "tag %d id %d fid %d newfid %d name %s" > v9fs_xattrwalk_return(uint16_t tag, uint8_t id, int64_t size) "tag %d id %d size %"PRId64 > v9fs_xattrcreate(uint16_t tag, uint8_t id, int32_t fid, char* name, uint64_t size, int flags) "tag %d id %d fid %d name %s size %"PRIu64" flags %d" > -- > 2.11.0 > > Regards, Daniel
diff --git a/fsdev/9p-marshal.h b/fsdev/9p-marshal.h index d1ad3645c4..8f3babb60a 100644 --- a/fsdev/9p-marshal.h +++ b/fsdev/9p-marshal.h @@ -9,7 +9,7 @@ typedef struct V9fsString typedef struct V9fsQID { - int8_t type; + uint8_t type; uint32_t version; uint64_t path; } V9fsQID; diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index b9bbdcbaee..2b893e25a1 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -587,13 +587,13 @@ static uint32_t qpf_hash(QpfEntry e) static bool qpp_cmp_func(const void *obj, const void *userp) { const QppEntry *e1 = obj, *e2 = userp; - return (e1->dev == e2->dev) && (e1->ino_prefix == e2->ino_prefix); + return e1->dev == e2->dev && e1->ino_prefix == e2->ino_prefix; } static bool qpf_cmp_func(const void *obj, const void *userp) { const QpfEntry *e1 = obj, *e2 = userp; - return (e1->dev == e2->dev) && (e1->ino == e2->ino); + return e1->dev == e2->dev && e1->ino == e2->ino; } static void qp_table_remove(void *p, uint32_t h, void *up) @@ -630,9 +630,6 @@ static int qid_path_fullmap(V9fsPDU *pdu, const struct stat *stbuf, } val = g_malloc0(sizeof(QppEntry)); - if (!val) { - return -ENOMEM; - } *val = lookup; /* new unique inode and device combo */ @@ -673,9 +670,6 @@ static int qid_path_prefixmap(V9fsPDU *pdu, const struct stat *stbuf, } val = g_malloc0(sizeof(QppEntry)); - if (!val) { - return -ENOMEM; - } *val = lookup; /* new unique inode prefix and device combo */ @@ -870,9 +864,9 @@ static int donttouch_stat(V9fsStat *stat) { if (stat->type == -1 && stat->dev == -1 && - stat->qid.type == -1 && - stat->qid.version == -1 && - stat->qid.path == -1 && + stat->qid.type == 0xff && + stat->qid.version == (uint32_t) -1 && + stat->qid.path == (uint64_t) -1 && stat->mode == -1 && stat->atime == -1 && stat->mtime == -1 && diff --git a/hw/9pfs/trace-events b/hw/9pfs/trace-events index c0a0a4ab5d..6964756922 100644 --- a/hw/9pfs/trace-events +++ b/hw/9pfs/trace-events @@ -6,7 +6,7 @@ v9fs_rerror(uint16_t tag, uint8_t id, int err) "tag %d id %d err %d" v9fs_version(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s" v9fs_version_return(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s" v9fs_attach(uint16_t tag, uint8_t id, int32_t fid, int32_t afid, char* uname, char* aname) "tag %u id %u fid %d afid %d uname %s aname %s" -v9fs_attach_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d type %d version %d path %"PRId64 +v9fs_attach_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d type %d version %d path %"PRId64 v9fs_stat(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" v9fs_stat_return(uint16_t tag, uint8_t id, int32_t mode, int32_t atime, int32_t mtime, int64_t length) "tag %d id %d stat={mode %d atime %d mtime %d length %"PRId64"}" v9fs_getattr(uint16_t tag, uint8_t id, int32_t fid, uint64_t request_mask) "tag %d id %d fid %d request_mask %"PRIu64 @@ -14,9 +14,9 @@ v9fs_getattr_return(uint16_t tag, uint8_t id, uint64_t result_mask, uint32_t mod v9fs_walk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, uint16_t nwnames) "tag %d id %d fid %d newfid %d nwnames %d" v9fs_walk_return(uint16_t tag, uint8_t id, uint16_t nwnames, void* qids) "tag %d id %d nwnames %d qids %p" v9fs_open(uint16_t tag, uint8_t id, int32_t fid, int32_t mode) "tag %d id %d fid %d mode %d" -v9fs_open_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" +v9fs_open_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" v9fs_lcreate(uint16_t tag, uint8_t id, int32_t dfid, int32_t flags, int32_t mode, uint32_t gid) "tag %d id %d dfid %d flags %d mode %d gid %u" -v9fs_lcreate_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int32_t iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" +v9fs_lcreate_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int32_t iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" v9fs_fsync(uint16_t tag, uint8_t id, int32_t fid, int datasync) "tag %d id %d fid %d datasync %d" v9fs_clunk(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" v9fs_read(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t max_count) "tag %d id %d fid %d off %"PRIu64" max_count %u" @@ -26,21 +26,21 @@ v9fs_readdir_return(uint16_t tag, uint8_t id, uint32_t count, ssize_t retval) "t v9fs_write(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t count, int cnt) "tag %d id %d fid %d off %"PRIu64" count %u cnt %d" v9fs_write_return(uint16_t tag, uint8_t id, int32_t total, ssize_t err) "tag %d id %d total %d err %zd" v9fs_create(uint16_t tag, uint8_t id, int32_t fid, char* name, int32_t perm, int8_t mode) "tag %d id %d fid %d name %s perm %d mode %d" -v9fs_create_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" +v9fs_create_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" v9fs_symlink(uint16_t tag, uint8_t id, int32_t fid, char* name, char* symname, uint32_t gid) "tag %d id %d fid %d name %s symname %s gid %u" -v9fs_symlink_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" +v9fs_symlink_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" v9fs_flush(uint16_t tag, uint8_t id, int16_t flush_tag) "tag %d id %d flush_tag %d" v9fs_link(uint16_t tag, uint8_t id, int32_t dfid, int32_t oldfid, char* name) "tag %d id %d dfid %d oldfid %d name %s" v9fs_remove(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" v9fs_wstat(uint16_t tag, uint8_t id, int32_t fid, int32_t mode, int32_t atime, int32_t mtime) "tag %u id %u fid %d stat={mode %d atime %d mtime %d}" v9fs_mknod(uint16_t tag, uint8_t id, int32_t fid, int mode, int major, int minor) "tag %d id %d fid %d mode %d major %d minor %d" -v9fs_mknod_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" +v9fs_mknod_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" v9fs_lock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length) "tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64 v9fs_lock_return(uint16_t tag, uint8_t id, int8_t status) "tag %d id %d status %d" v9fs_getlock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length)"tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64 v9fs_getlock_return(uint16_t tag, uint8_t id, uint8_t type, uint64_t start, uint64_t length, uint32_t proc_id) "tag %d id %d type %d start %"PRIu64" length %"PRIu64" proc_id %u" v9fs_mkdir(uint16_t tag, uint8_t id, int32_t fid, char* name, int mode, uint32_t gid) "tag %u id %u fid %d name %s mode %d gid %u" -v9fs_mkdir_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int err) "tag %u id %u qid={type %d version %d path %"PRId64"} err %d" +v9fs_mkdir_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int err) "tag %u id %u qid={type %d version %d path %"PRId64"} err %d" v9fs_xattrwalk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, char* name) "tag %d id %d fid %d newfid %d name %s" v9fs_xattrwalk_return(uint16_t tag, uint8_t id, int64_t size) "tag %d id %d size %"PRId64 v9fs_xattrcreate(uint16_t tag, uint8_t id, int32_t fid, char* name, uint64_t size, int flags) "tag %d id %d fid %d name %s size %"PRIu64" flags %d"
Addresses trivial changes regarding the previous patch as requested on the mailing list a while ago. * Removed unneccessary parantheses: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02661.html * Removed unneccessary g_malloc() result checks: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02814.html * Unsigned type changes: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02581.html Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com> --- fsdev/9p-marshal.h | 2 +- hw/9pfs/9p.c | 16 +++++----------- hw/9pfs/trace-events | 14 +++++++------- 3 files changed, 13 insertions(+), 19 deletions(-)