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author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-11-01 21:24:41 +0100 |
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committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-12-02 20:05:52 +0100 |
commit | 93b8959a0a8cf1b1a493efee9e8328681e111862 (patch) | |
tree | 6772b8194b518969f5e4972d8bc2917065de71e0 /fs/nfs | |
parent | NFS: Support larger readdir buffers (diff) | |
download | linux-93b8959a0a8cf1b1a493efee9e8328681e111862.tar.xz linux-93b8959a0a8cf1b1a493efee9e8328681e111862.zip |
NFS: More readdir cleanups
Remove the redundant caching of the credential in struct
nfs_open_dir_context.
Pass the buffer size as an argument to nfs_readdir_xdr_filler().
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Tested-by: Benjamin Coddington <bcodding@redhat.com>
Tested-by: Dave Wysochanski <dwysocha@redhat.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r-- | fs/nfs/dir.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 438906dae083..bc366bd8e8f3 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -68,7 +68,7 @@ const struct address_space_operations nfs_dir_aops = { .freepage = nfs_readdir_clear_array, }; -static struct nfs_open_dir_context *alloc_nfs_open_dir_context(struct inode *dir, const struct cred *cred) +static struct nfs_open_dir_context *alloc_nfs_open_dir_context(struct inode *dir) { struct nfs_inode *nfsi = NFS_I(dir); struct nfs_open_dir_context *ctx; @@ -78,7 +78,6 @@ static struct nfs_open_dir_context *alloc_nfs_open_dir_context(struct inode *dir ctx->attr_gencount = nfsi->attr_gencount; ctx->dir_cookie = 0; ctx->dup_cookie = 0; - ctx->cred = get_cred(cred); spin_lock(&dir->i_lock); if (list_empty(&nfsi->open_files) && (nfsi->cache_validity & NFS_INO_DATA_INVAL_DEFER)) @@ -96,7 +95,6 @@ static void put_nfs_open_dir_context(struct inode *dir, struct nfs_open_dir_cont spin_lock(&dir->i_lock); list_del(&ctx->list); spin_unlock(&dir->i_lock); - put_cred(ctx->cred); kfree(ctx); } @@ -113,7 +111,7 @@ nfs_opendir(struct inode *inode, struct file *filp) nfs_inc_stats(inode, NFSIOS_VFSOPEN); - ctx = alloc_nfs_open_dir_context(inode, current_cred()); + ctx = alloc_nfs_open_dir_context(inode); if (IS_ERR(ctx)) { res = PTR_ERR(ctx); goto out; @@ -468,12 +466,12 @@ int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc) } /* Fill a page with xdr information before transferring to the cache page */ -static -int nfs_readdir_xdr_filler(struct page **pages, nfs_readdir_descriptor_t *desc, - struct nfs_entry *entry, struct file *file, struct inode *inode) +static int nfs_readdir_xdr_filler(struct nfs_readdir_descriptor *desc, + u64 cookie, struct page **pages, + size_t bufsize) { - struct nfs_open_dir_context *ctx = file->private_data; - const struct cred *cred = ctx->cred; + struct file *file = desc->file; + struct inode *inode = file_inode(file); unsigned long timestamp, gencount; int error; @@ -481,8 +479,8 @@ int nfs_readdir_xdr_filler(struct page **pages, nfs_readdir_descriptor_t *desc, timestamp = jiffies; gencount = nfs_inc_attr_generation_counter(); desc->dir_verifier = nfs_save_change_attribute(inode); - error = NFS_PROTO(inode)->readdir(file_dentry(file), cred, entry->cookie, pages, - NFS_SERVER(inode)->dtsize, desc->plus); + error = NFS_PROTO(inode)->readdir(file_dentry(file), file->f_cred, + cookie, pages, bufsize, desc->plus); if (error < 0) { /* We requested READDIRPLUS, but the server doesn't grok it */ if (error == -ENOTSUPP && desc->plus) { @@ -764,7 +762,6 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, { struct page **pages; struct nfs_entry entry; - struct file *file = desc->file; size_t array_size; size_t dtsize = NFS_SERVER(inode)->dtsize; int status = -ENOMEM; @@ -791,8 +788,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, do { unsigned int pglen; - status = nfs_readdir_xdr_filler(pages, desc, &entry, file, inode); - + status = nfs_readdir_xdr_filler(desc, entry.cookie, + pages, dtsize); if (status < 0) break; |