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9p: Add additional debug flags and open modes

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Add some additional debug flags to assist with debugging
cache changes.  Also add some additional open modes so we
can track cache state in fids more directly.

Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
This commit is contained in:
Eric Van Hensbergen 2022-12-18 18:03:54 +00:00
parent 8142db4f27
commit 46c30cb8f5
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GPG Key ID: 88FFD5FB4A5FFF98
2 changed files with 10 additions and 4 deletions
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6
include/net/9p/9p.h
View File

@ -42,6 +42,8 @@ enum p9_debug_flags {
P9_DEBUG_PKT = (1<<10),
P9_DEBUG_FSC = (1<<11),
P9_DEBUG_VPKT = (1<<12),
P9_DEBUG_CACHE = (1<<13),
P9_DEBUG_MMAP = (1<<14),
};
#ifdef CONFIG_NET_9P_DEBUG
@ -213,6 +215,10 @@ enum p9_open_mode_t {
P9_ORCLOSE = 0x40,
P9_OAPPEND = 0x80,
P9_OEXCL = 0x1000,
P9L_MODE_MASK = 0x1FFF, /* don't send anything under this to server */
P9L_DIRECT = 0x2000, /* cache disabled */
P9L_NOWRITECACHE = 0x4000, /* no write caching */
P9L_LOOSE = 0x8000, /* loose cache */
};
/**

8
net/9p/client.c
View File

@ -1230,9 +1230,9 @@ int p9_client_open(struct p9_fid *fid, int mode)
return -EINVAL;
if (p9_is_proto_dotl(clnt))
req = p9_client_rpc(clnt, P9_TLOPEN, "dd", fid->fid, mode);
req = p9_client_rpc(clnt, P9_TLOPEN, "dd", fid->fid, mode & P9L_MODE_MASK);
else
req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode);
req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode & P9L_MODE_MASK);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@ -1277,7 +1277,7 @@ int p9_client_create_dotl(struct p9_fid *ofid, const char *name, u32 flags,
return -EINVAL;
req = p9_client_rpc(clnt, P9_TLCREATE, "dsddg", ofid->fid, name, flags,
mode, gid);
mode & P9L_MODE_MASK, gid);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
@ -1321,7 +1321,7 @@ int p9_client_fcreate(struct p9_fid *fid, const char *name, u32 perm, int mode,
return -EINVAL;
req = p9_client_rpc(clnt, P9_TCREATE, "dsdb?s", fid->fid, name, perm,
mode, extension);
mode & P9L_MODE_MASK, extension);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;