From: trondmy@kernel.org
To: linux-nfs@vger.kernel.org
Subject: [PATCH v4 12/21] NFS: More readdir cleanups
Date: Sat, 7 Nov 2020 09:03:16 -0500 [thread overview]
Message-ID: <20201107140325.281678-13-trondmy@kernel.org> (raw)
In-Reply-To: <20201107140325.281678-12-trondmy@kernel.org>
From: Trond Myklebust <trond.myklebust@hammerspace.com>
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>
---
fs/nfs/dir.c | 25 +++++++++++--------------
include/linux/nfs_fs.h | 1 -
2 files changed, 11 insertions(+), 15 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;
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index a2c6455ea3fa..dd6b463dda80 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -88,7 +88,6 @@ struct nfs_open_context {
struct nfs_open_dir_context {
struct list_head list;
- const struct cred *cred;
unsigned long attr_gencount;
__u64 dir_cookie;
__u64 dup_cookie;
--
2.28.0
next prev parent reply other threads:[~2020-11-07 14:13 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-07 14:03 [PATCH v4 00/21] Readdir enhancements trondmy
2020-11-07 14:03 ` [PATCH v4 01/21] NFS: Remove unnecessary inode locking in nfs_llseek_dir() trondmy
2020-11-07 14:03 ` [PATCH v4 02/21] NFS: Remove unnecessary inode lock in nfs_fsync_dir() trondmy
2020-11-07 14:03 ` [PATCH v4 03/21] NFS: Ensure contents of struct nfs_open_dir_context are consistent trondmy
2020-11-07 14:03 ` [PATCH v4 04/21] NFS: Clean up readdir struct nfs_cache_array trondmy
2020-11-07 14:03 ` [PATCH v4 05/21] NFS: Clean up nfs_readdir_page_filler() trondmy
2020-11-07 14:03 ` [PATCH v4 06/21] NFS: Clean up directory array handling trondmy
2020-11-07 14:03 ` [PATCH v4 07/21] NFS: Don't discard readdir results trondmy
2020-11-07 14:03 ` [PATCH v4 08/21] NFS: Remove unnecessary kmap in nfs_readdir_xdr_to_array() trondmy
2020-11-07 14:03 ` [PATCH v4 09/21] NFS: Replace kmap() with kmap_atomic() in nfs_readdir_search_array() trondmy
2020-11-07 14:03 ` [PATCH v4 10/21] NFS: Simplify struct nfs_cache_array_entry trondmy
2020-11-07 14:03 ` [PATCH v4 11/21] NFS: Support larger readdir buffers trondmy
2020-11-07 14:03 ` trondmy [this message]
2020-11-07 14:03 ` [PATCH v4 13/21] NFS: nfs_do_filldir() does not return a value trondmy
2020-11-07 14:03 ` [PATCH v4 14/21] NFS: Reduce readdir stack usage trondmy
2020-11-07 14:03 ` [PATCH v4 15/21] NFS: Cleanup to remove nfs_readdir_descriptor_t typedef trondmy
2020-11-07 14:03 ` [PATCH v4 16/21] NFS: Allow the NFS generic code to pass in a verifier to readdir trondmy
2020-11-07 14:03 ` [PATCH v4 17/21] NFS: Handle NFS4ERR_NOT_SAME and NFSERR_BADCOOKIE from readdir calls trondmy
2020-11-07 14:03 ` [PATCH v4 18/21] NFS: Improve handling of directory verifiers trondmy
2020-11-07 14:03 ` [PATCH v4 19/21] NFS: Optimisations for monotonically increasing readdir cookies trondmy
2020-11-07 14:03 ` [PATCH v4 20/21] NFS: Reduce number of RPC calls when doing uncached readdir trondmy
2020-11-07 14:03 ` [PATCH v4 21/21] NFS: Do uncached readdir when we're seeking a cookie in an empty page cache trondmy
2020-11-09 21:41 ` Benjamin Coddington
2020-11-09 21:46 ` Trond Myklebust
2020-11-11 16:43 ` Benjamin Coddington
2020-11-11 17:34 ` Trond Myklebust
2020-11-11 19:53 ` Benjamin Coddington
2020-11-11 20:11 ` Trond Myklebust
2020-11-10 14:48 ` David Wysochanski
2020-11-10 20:55 ` Trond Myklebust
2020-11-09 20:59 ` [PATCH v4 20/21] NFS: Reduce number of RPC calls when doing uncached readdir Benjamin Coddington
2020-11-09 13:15 ` [PATCH v4 00/21] Readdir enhancements David Wysochanski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201107140325.281678-13-trondmy@kernel.org \
--to=trondmy@kernel.org \
--cc=linux-nfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.