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authorEric Van Hensbergen <ericvh@gmail.com>2006-03-02 05:54:33 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-02 11:33:07 -0500
commit46f6dac259717551916405ee3388de89fb152bca (patch)
tree0e6c8b4505339e90c05ec8326220286fd19fe1f4 /fs/9p/v9fs.c
parent74b8054c730785cd9db093e48f53337e521b6270 (diff)
[PATCH] v9fs: simplify fid mapping
v9fs has been plagued by an over-complicated approach trying to map Linux dentry semantics to Plan 9 fid semantics. Our previous approach called for aggressive flushing of the dcache resulting in several problems (including wierd cwd behavior when running /bin/pwd). This patch dramatically simplifies our handling of this fid management. Fids will not be clunked as promptly, but the new approach is more functionally correct. We now clunk un-open fids only when their dentry ref_count reaches 0 (and d_delete is called). Another simplification is we no longer seek to match fids to the process-id or uid of the action initiator. The uid-matching will need to be revisited when we fix the security model. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/9p/v9fs.c')
-rw-r--r--fs/9p/v9fs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index ef3386549140..61352491ba36 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -397,6 +397,7 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
397 } 397 }
398 398
399 if (v9ses->afid != ~0) { 399 if (v9ses->afid != ~0) {
400 dprintk(DEBUG_ERROR, "afid not equal to ~0\n");
400 if (v9fs_t_clunk(v9ses, v9ses->afid)) 401 if (v9fs_t_clunk(v9ses, v9ses->afid))
401 dprintk(DEBUG_ERROR, "clunk failed\n"); 402 dprintk(DEBUG_ERROR, "clunk failed\n");
402 } 403 }