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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-05-29 13:11:28 -0400 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-06-06 16:24:43 -0400 |
commit | 275bb307865a316cef390e01e6ab5e21e97023a2 (patch) | |
tree | fb7948a7d16dc90a8e6c8959757ae59fc8d21ea9 /fs/nfs | |
parent | 3efb9722475e56c8878ce09395dd8ccb7a1a3611 (diff) | |
download | linux-275bb307865a316cef390e01e6ab5e21e97023a2.tar.gz linux-275bb307865a316cef390e01e6ab5e21e97023a2.tar.bz2 linux-275bb307865a316cef390e01e6ab5e21e97023a2.zip |
NFSv4: Move dentry instantiation into the NFSv4-specific atomic open code
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r-- | fs/nfs/dir.c | 19 | ||||
-rw-r--r-- | fs/nfs/nfs4file.c | 1 | ||||
-rw-r--r-- | fs/nfs/nfs4proc.c | 21 |
3 files changed, 20 insertions, 21 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index bf4e5f47d686..c662ff6befd6 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1357,11 +1357,6 @@ static int nfs_finish_open(struct nfs_open_context *ctx, { int err; - if (ctx->dentry != dentry) { - dput(ctx->dentry); - ctx->dentry = dget(dentry); - } - err = finish_open(file, dentry, do_open, opened); if (err) goto out; @@ -1420,13 +1415,13 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry, nfs_block_sillyrename(dentry->d_parent); inode = NFS_PROTO(dir)->open_context(dir, ctx, open_flags, &attr); - d_drop(dentry); + nfs_unblock_sillyrename(dentry->d_parent); if (IS_ERR(inode)) { - nfs_unblock_sillyrename(dentry->d_parent); put_nfs_open_context(ctx); err = PTR_ERR(inode); switch (err) { case -ENOENT: + d_drop(dentry); d_add(dentry, NULL); break; case -EISDIR: @@ -1442,16 +1437,8 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry, } goto out; } - res = d_add_unique(dentry, inode); - if (res != NULL) - dentry = res; - - nfs_unblock_sillyrename(dentry->d_parent); - nfs_set_verifier(dentry, nfs_save_change_attribute(dir)); - - err = nfs_finish_open(ctx, dentry, file, open_flags, opened); - dput(res); + err = nfs_finish_open(ctx, ctx->dentry, file, open_flags, opened); out: return err; diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 13e6bb3e3fe5..e5b804dd944c 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -69,7 +69,6 @@ nfs4_file_open(struct inode *inode, struct file *filp) goto out_drop; } } - iput(inode); if (inode != dentry->d_inode) goto out_drop; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 70f378f071d8..aaf2c1324be7 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1964,6 +1964,7 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, { struct nfs4_state_owner *sp = opendata->owner; struct nfs_server *server = sp->so_server; + struct dentry *dentry; struct nfs4_state *state; unsigned int seq; int ret; @@ -1981,6 +1982,21 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, if (server->caps & NFS_CAP_POSIX_LOCK) set_bit(NFS_STATE_POSIX_LOCKS, &state->flags); + dentry = opendata->dentry; + if (dentry->d_inode == NULL) { + /* FIXME: Is this d_drop() ever needed? */ + d_drop(dentry); + dentry = d_add_unique(dentry, igrab(state->inode)); + if (dentry == NULL) { + dentry = opendata->dentry; + } else if (dentry != ctx->dentry) { + dput(ctx->dentry); + ctx->dentry = dget(dentry); + } + nfs_set_verifier(dentry, + nfs_save_change_attribute(opendata->dir->d_inode)); + } + ret = nfs4_opendata_access(sp->so_cred, opendata, state, fmode, flags); if (ret != 0) goto out; @@ -2444,7 +2460,7 @@ nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags state = nfs4_do_open(dir, ctx, open_flags, attr); if (IS_ERR(state)) return ERR_CAST(state); - return igrab(state->inode); + return state->inode; } static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync) @@ -3050,13 +3066,10 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, sattr->ia_mode &= ~current_umask(); state = nfs4_do_open(dir, ctx, flags, sattr); - d_drop(dentry); if (IS_ERR(state)) { status = PTR_ERR(state); goto out; } - d_add(dentry, igrab(state->inode)); - nfs_set_verifier(dentry, nfs_save_change_attribute(dir)); out: put_nfs_open_context(ctx); return status; |