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9p: pass dotl flags to the unlinkat method

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AT_REMOVEDIR is not defined on all systems.  Pass the raw flags from the
9p protocol, which are always there.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Paolo Bonzini 2011-11-18 17:35:38 +01:00 • committed by Anthony Liguori
parent f565403949
commit 930b588395
2 changed files with 11 additions and 11 deletions
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12
hw/9pfs/virtio-9p-handle.c
View file

@ -65,6 +65,9 @@ struct rpl_file_handle {
}; };
#define file_handle rpl_file_handle #define file_handle rpl_file_handle
#ifndef AT_REMOVEDIR
#define AT_REMOVEDIR 0x200
#endif
#ifndef AT_EMPTY_PATH #ifndef AT_EMPTY_PATH
#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */ #define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */
#endif #endif
@ -575,13 +578,20 @@ static int handle_unlinkat(FsContext *ctx, V9fsPath *dir,
{ {
int dirfd, ret; int dirfd, ret;
struct handle_data *data = (struct handle_data *)ctx->private; struct handle_data *data = (struct handle_data *)ctx->private;
int rflags;
dirfd = open_by_handle(data->mountfd, dir->data, O_PATH); dirfd = open_by_handle(data->mountfd, dir->data, O_PATH);
if (dirfd < 0) { if (dirfd < 0) {
return dirfd; return dirfd;
} }
ret = unlinkat(dirfd, name, flags); rflags = 0;
if (flags & P9_DOTL_AT_REMOVEDIR) {
rflags |= AT_REMOVEDIR;
}
ret = unlinkat(dirfd, name, rflags);
close(dirfd); close(dirfd);
return ret; return ret;
} }

10
hw/9pfs/virtio-9p.c
View file

@ -74,15 +74,6 @@ static int omode_to_uflags(int8_t mode)
return ret; return ret;
} }
static int dotl_to_at_flags(int flags)
{
int rflags = 0;
if (flags & P9_DOTL_AT_REMOVEDIR) {
rflags |= AT_REMOVEDIR;
}
return rflags;
}
struct dotl_openflag_map { struct dotl_openflag_map {
int dotl_flag; int dotl_flag;
int open_flag; int open_flag;
@ -2444,7 +2435,6 @@ static void v9fs_unlinkat(void *opaque)
V9fsPDU *pdu = opaque; V9fsPDU *pdu = opaque;
pdu_unmarshal(pdu, offset, "dsd", &dfid, &name, &flags); pdu_unmarshal(pdu, offset, "dsd", &dfid, &name, &flags);
flags = dotl_to_at_flags(flags);
dfidp = get_fid(pdu, dfid); dfidp = get_fid(pdu, dfid);
if (dfidp == NULL) { if (dfidp == NULL) {