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Message-Id: <20170601093245.29238-2-jack@suse.cz>
Date: Thu, 1 Jun 2017 11:32:11 +0200
From: Jan Kara <jack@...e.cz>
To: <linux-mm@...ck.org>
Cc: Hugh Dickins <hughd@...gle.com>,
David Howells <dhowells@...hat.com>,
linux-afs@...ts.infradead.org,
Ryusuke Konishi <konishi.ryusuke@....ntt.co.jp>,
linux-nilfs@...r.kernel.org, Bob Peterson <rpeterso@...hat.com>,
cluster-devel@...hat.com, Jaegeuk Kim <jaegeuk@...nel.org>,
linux-f2fs-devel@...ts.sourceforge.net, tytso@....edu,
linux-ext4@...r.kernel.org, Ilya Dryomov <idryomov@...il.com>,
"Yan, Zheng" <zyan@...hat.com>, ceph-devel@...r.kernel.org,
linux-btrfs@...r.kernel.org, David Sterba <dsterba@...e.com>,
"Darrick J . Wong" <darrick.wong@...cle.com>,
linux-xfs@...r.kernel.org,
Nadia Yvette Chambers <nyc@...omorphy.com>,
Jan Kara <jack@...e.cz>
Subject: [PATCH 01/35] fscache: Remove unused ->now_uncached callback
The callback doesn't ever get called. Remove it.
Signed-off-by: Jan Kara <jack@...e.cz>
---
Documentation/filesystems/caching/netfs-api.txt | 2 --
fs/9p/cache.c | 29 -----------------
fs/afs/cache.c | 43 -------------------------
fs/ceph/cache.c | 31 ------------------
fs/cifs/cache.c | 31 ------------------
fs/nfs/fscache-index.c | 40 -----------------------
include/linux/fscache.h | 9 ------
7 files changed, 185 deletions(-)
diff --git a/Documentation/filesystems/caching/netfs-api.txt b/Documentation/filesystems/caching/netfs-api.txt
index aed6b94160b1..0eb31de3a2c1 100644
--- a/Documentation/filesystems/caching/netfs-api.txt
+++ b/Documentation/filesystems/caching/netfs-api.txt
@@ -151,8 +151,6 @@ To define an object, a structure of the following type should be filled out:
void (*mark_pages_cached)(void *cookie_netfs_data,
struct address_space *mapping,
struct pagevec *cached_pvec);
-
- void (*now_uncached)(void *cookie_netfs_data);
};
This has the following fields:
diff --git a/fs/9p/cache.c b/fs/9p/cache.c
index 103ca5e1267b..64c58eb26159 100644
--- a/fs/9p/cache.c
+++ b/fs/9p/cache.c
@@ -151,34 +151,6 @@ fscache_checkaux v9fs_cache_inode_check_aux(void *cookie_netfs_data,
return FSCACHE_CHECKAUX_OKAY;
}
-static void v9fs_cache_inode_now_uncached(void *cookie_netfs_data)
-{
- struct v9fs_inode *v9inode = cookie_netfs_data;
- struct pagevec pvec;
- pgoff_t first;
- int loop, nr_pages;
-
- pagevec_init(&pvec, 0);
- first = 0;
-
- for (;;) {
- nr_pages = pagevec_lookup(&pvec, v9inode->vfs_inode.i_mapping,
- first,
- PAGEVEC_SIZE - pagevec_count(&pvec));
- if (!nr_pages)
- break;
-
- for (loop = 0; loop < nr_pages; loop++)
- ClearPageFsCache(pvec.pages[loop]);
-
- first = pvec.pages[nr_pages - 1]->index + 1;
-
- pvec.nr = nr_pages;
- pagevec_release(&pvec);
- cond_resched();
- }
-}
-
const struct fscache_cookie_def v9fs_cache_inode_index_def = {
.name = "9p.inode",
.type = FSCACHE_COOKIE_TYPE_DATAFILE,
@@ -186,7 +158,6 @@ const struct fscache_cookie_def v9fs_cache_inode_index_def = {
.get_attr = v9fs_cache_inode_get_attr,
.get_aux = v9fs_cache_inode_get_aux,
.check_aux = v9fs_cache_inode_check_aux,
- .now_uncached = v9fs_cache_inode_now_uncached,
};
void v9fs_cache_inode_get_cookie(struct inode *inode)
diff --git a/fs/afs/cache.c b/fs/afs/cache.c
index 577763c3d88b..1fe855191261 100644
--- a/fs/afs/cache.c
+++ b/fs/afs/cache.c
@@ -39,7 +39,6 @@ static uint16_t afs_vnode_cache_get_aux(const void *cookie_netfs_data,
static enum fscache_checkaux afs_vnode_cache_check_aux(void *cookie_netfs_data,
const void *buffer,
uint16_t buflen);
-static void afs_vnode_cache_now_uncached(void *cookie_netfs_data);
struct fscache_netfs afs_cache_netfs = {
.name = "afs",
@@ -75,7 +74,6 @@ struct fscache_cookie_def afs_vnode_cache_index_def = {
.get_attr = afs_vnode_cache_get_attr,
.get_aux = afs_vnode_cache_get_aux,
.check_aux = afs_vnode_cache_check_aux,
- .now_uncached = afs_vnode_cache_now_uncached,
};
/*
@@ -359,44 +357,3 @@ static enum fscache_checkaux afs_vnode_cache_check_aux(void *cookie_netfs_data,
_leave(" = SUCCESS");
return FSCACHE_CHECKAUX_OKAY;
}
-
-/*
- * indication the cookie is no longer uncached
- * - this function is called when the backing store currently caching a cookie
- * is removed
- * - the netfs should use this to clean up any markers indicating cached pages
- * - this is mandatory for any object that may have data
- */
-static void afs_vnode_cache_now_uncached(void *cookie_netfs_data)
-{
- struct afs_vnode *vnode = cookie_netfs_data;
- struct pagevec pvec;
- pgoff_t first;
- int loop, nr_pages;
-
- _enter("{%x,%x,%Lx}",
- vnode->fid.vnode, vnode->fid.unique, vnode->status.data_version);
-
- pagevec_init(&pvec, 0);
- first = 0;
-
- for (;;) {
- /* grab a bunch of pages to clean */
- nr_pages = pagevec_lookup(&pvec, vnode->vfs_inode.i_mapping,
- first,
- PAGEVEC_SIZE - pagevec_count(&pvec));
- if (!nr_pages)
- break;
-
- for (loop = 0; loop < nr_pages; loop++)
- ClearPageFsCache(pvec.pages[loop]);
-
- first = pvec.pages[nr_pages - 1]->index + 1;
-
- pvec.nr = nr_pages;
- pagevec_release(&pvec);
- cond_resched();
- }
-
- _leave("");
-}
diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c
index 4e7421caf380..edb86ac34051 100644
--- a/fs/ceph/cache.c
+++ b/fs/ceph/cache.c
@@ -137,36 +137,6 @@ static enum fscache_checkaux ceph_fscache_inode_check_aux(
return FSCACHE_CHECKAUX_OKAY;
}
-static void ceph_fscache_inode_now_uncached(void* cookie_netfs_data)
-{
- struct ceph_inode_info* ci = cookie_netfs_data;
- struct pagevec pvec;
- pgoff_t first;
- int loop, nr_pages;
-
- pagevec_init(&pvec, 0);
- first = 0;
-
- dout("ceph inode 0x%p now uncached", ci);
-
- while (1) {
- nr_pages = pagevec_lookup(&pvec, ci->vfs_inode.i_mapping, first,
- PAGEVEC_SIZE - pagevec_count(&pvec));
-
- if (!nr_pages)
- break;
-
- for (loop = 0; loop < nr_pages; loop++)
- ClearPageFsCache(pvec.pages[loop]);
-
- first = pvec.pages[nr_pages - 1]->index + 1;
-
- pvec.nr = nr_pages;
- pagevec_release(&pvec);
- cond_resched();
- }
-}
-
static const struct fscache_cookie_def ceph_fscache_inode_object_def = {
.name = "CEPH.inode",
.type = FSCACHE_COOKIE_TYPE_DATAFILE,
@@ -174,7 +144,6 @@ static const struct fscache_cookie_def ceph_fscache_inode_object_def = {
.get_attr = ceph_fscache_inode_get_attr,
.get_aux = ceph_fscache_inode_get_aux,
.check_aux = ceph_fscache_inode_check_aux,
- .now_uncached = ceph_fscache_inode_now_uncached,
};
void ceph_fscache_register_inode_cookie(struct inode *inode)
diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c
index 6c665bf4a27c..2c14020e5e1d 100644
--- a/fs/cifs/cache.c
+++ b/fs/cifs/cache.c
@@ -292,36 +292,6 @@ fscache_checkaux cifs_fscache_inode_check_aux(void *cookie_netfs_data,
return FSCACHE_CHECKAUX_OKAY;
}
-static void cifs_fscache_inode_now_uncached(void *cookie_netfs_data)
-{
- struct cifsInodeInfo *cifsi = cookie_netfs_data;
- struct pagevec pvec;
- pgoff_t first;
- int loop, nr_pages;
-
- pagevec_init(&pvec, 0);
- first = 0;
-
- cifs_dbg(FYI, "%s: cifs inode 0x%p now uncached\n", __func__, cifsi);
-
- for (;;) {
- nr_pages = pagevec_lookup(&pvec,
- cifsi->vfs_inode.i_mapping, first,
- PAGEVEC_SIZE - pagevec_count(&pvec));
- if (!nr_pages)
- break;
-
- for (loop = 0; loop < nr_pages; loop++)
- ClearPageFsCache(pvec.pages[loop]);
-
- first = pvec.pages[nr_pages - 1]->index + 1;
-
- pvec.nr = nr_pages;
- pagevec_release(&pvec);
- cond_resched();
- }
-}
-
const struct fscache_cookie_def cifs_fscache_inode_object_def = {
.name = "CIFS.uniqueid",
.type = FSCACHE_COOKIE_TYPE_DATAFILE,
@@ -329,5 +299,4 @@ const struct fscache_cookie_def cifs_fscache_inode_object_def = {
.get_attr = cifs_fscache_inode_get_attr,
.get_aux = cifs_fscache_inode_get_aux,
.check_aux = cifs_fscache_inode_check_aux,
- .now_uncached = cifs_fscache_inode_now_uncached,
};
diff --git a/fs/nfs/fscache-index.c b/fs/nfs/fscache-index.c
index 777b055063f6..3025fe8584a0 100644
--- a/fs/nfs/fscache-index.c
+++ b/fs/nfs/fscache-index.c
@@ -252,45 +252,6 @@ enum fscache_checkaux nfs_fscache_inode_check_aux(void *cookie_netfs_data,
}
/*
- * Indication from FS-Cache that the cookie is no longer cached
- * - This function is called when the backing store currently caching a cookie
- * is removed
- * - The netfs should use this to clean up any markers indicating cached pages
- * - This is mandatory for any object that may have data
- */
-static void nfs_fscache_inode_now_uncached(void *cookie_netfs_data)
-{
- struct nfs_inode *nfsi = cookie_netfs_data;
- struct pagevec pvec;
- pgoff_t first;
- int loop, nr_pages;
-
- pagevec_init(&pvec, 0);
- first = 0;
-
- dprintk("NFS: nfs_inode_now_uncached: nfs_inode 0x%p\n", nfsi);
-
- for (;;) {
- /* grab a bunch of pages to unmark */
- nr_pages = pagevec_lookup(&pvec,
- nfsi->vfs_inode.i_mapping,
- first,
- PAGEVEC_SIZE - pagevec_count(&pvec));
- if (!nr_pages)
- break;
-
- for (loop = 0; loop < nr_pages; loop++)
- ClearPageFsCache(pvec.pages[loop]);
-
- first = pvec.pages[nr_pages - 1]->index + 1;
-
- pvec.nr = nr_pages;
- pagevec_release(&pvec);
- cond_resched();
- }
-}
-
-/*
* Get an extra reference on a read context.
* - This function can be absent if the completion function doesn't require a
* context.
@@ -330,7 +291,6 @@ const struct fscache_cookie_def nfs_fscache_inode_object_def = {
.get_attr = nfs_fscache_inode_get_attr,
.get_aux = nfs_fscache_inode_get_aux,
.check_aux = nfs_fscache_inode_check_aux,
- .now_uncached = nfs_fscache_inode_now_uncached,
.get_context = nfs_fh_get_context,
.put_context = nfs_fh_put_context,
};
diff --git a/include/linux/fscache.h b/include/linux/fscache.h
index 115bb81912cc..f4ff47d4a893 100644
--- a/include/linux/fscache.h
+++ b/include/linux/fscache.h
@@ -143,15 +143,6 @@ struct fscache_cookie_def {
void (*mark_page_cached)(void *cookie_netfs_data,
struct address_space *mapping,
struct page *page);
-
- /* indicate the cookie is no longer cached
- * - this function is called when the backing store currently caching
- * a cookie is removed
- * - the netfs should use this to clean up any markers indicating
- * cached pages
- * - this is mandatory for any object that may have data
- */
- void (*now_uncached)(void *cookie_netfs_data);
};
/*
--
2.12.3
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