summaryrefslogtreecommitdiff
path: root/fs/ceph/inode.c
diff options
context:
space:
mode:
authorJeff Layton <jlayton@kernel.org>2021-12-07 16:44:50 +0300
committerDavid Howells <dhowells@redhat.com>2022-01-12 01:13:01 +0300
commit400e1286c0ec3fd13d7ac0705c3c175bcb6d2899 (patch)
tree6cf81c3a9c5b912444d790d78769c7ecde1eb45d /fs/ceph/inode.c
parent16f2f4e679cfdaa9552574484f104014908a76c6 (diff)
downloadlinux-400e1286c0ec3fd13d7ac0705c3c175bcb6d2899.tar.xz
ceph: conversion to new fscache API
Now that the fscache API has been reworked and simplified, change ceph over to use it. With the old API, we would only instantiate a cookie when the file was open for reads. Change it to instantiate the cookie when the inode is instantiated and call use/unuse when the file is opened/closed. Also, ensure we resize the cached data on truncates, and invalidate the cache in response to the appropriate events. This will allow us to plumb in write support later. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/r/20211129162907.149445-2-jlayton@kernel.org/ # v1 Link: https://lore.kernel.org/r/20211207134451.66296-2-jlayton@kernel.org/ # v2 Link: https://lore.kernel.org/r/163906984277.143852.14697110691303589000.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/163967188351.1823006.5065634844099079351.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/164021581427.640689.14128682147127509264.stgit@warthog.procyon.org.uk/ # v4
Diffstat (limited to 'fs/ceph/inode.c')
-rw-r--r--fs/ceph/inode.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index e3322fcb2e8d..ef4a980a7bf3 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -564,6 +564,8 @@ void ceph_evict_inode(struct inode *inode)
percpu_counter_dec(&mdsc->metric.total_inodes);
truncate_inode_pages_final(&inode->i_data);
+ if (inode->i_state & I_PINNING_FSCACHE_WB)
+ ceph_fscache_unuse_cookie(inode, true);
clear_inode(inode);
ceph_fscache_unregister_inode_cookie(ci);
@@ -634,6 +636,12 @@ int ceph_fill_file_size(struct inode *inode, int issued,
}
i_size_write(inode, size);
inode->i_blocks = calc_inode_blocks(size);
+ /*
+ * If we're expanding, then we should be able to just update
+ * the existing cookie.
+ */
+ if (size > isize)
+ ceph_fscache_update(inode);
ci->i_reported_size = size;
if (truncate_seq != ci->i_truncate_seq) {
dout("truncate_seq %u -> %u\n",
@@ -666,10 +674,6 @@ int ceph_fill_file_size(struct inode *inode, int issued,
truncate_size);
ci->i_truncate_size = truncate_size;
}
-
- if (queue_trunc)
- ceph_fscache_invalidate(inode);
-
return queue_trunc;
}
@@ -1053,6 +1057,8 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page,
spin_unlock(&ci->i_ceph_lock);
+ ceph_fscache_register_inode_cookie(inode);
+
if (fill_inline)
ceph_fill_inline_data(inode, locked_page,
iinfo->inline_data, iinfo->inline_len);
@@ -1814,11 +1820,13 @@ bool ceph_inode_set_size(struct inode *inode, loff_t size)
spin_lock(&ci->i_ceph_lock);
dout("set_size %p %llu -> %llu\n", inode, i_size_read(inode), size);
i_size_write(inode, size);
+ ceph_fscache_update(inode);
inode->i_blocks = calc_inode_blocks(size);
ret = __ceph_should_report_size(ci);
spin_unlock(&ci->i_ceph_lock);
+
return ret;
}
@@ -1844,6 +1852,8 @@ static void ceph_do_invalidate_pages(struct inode *inode)
u32 orig_gen;
int check = 0;
+ ceph_fscache_invalidate(inode, false);
+
mutex_lock(&ci->i_truncate_mutex);
if (ceph_inode_is_shutdown(inode)) {
@@ -1868,7 +1878,7 @@ static void ceph_do_invalidate_pages(struct inode *inode)
orig_gen = ci->i_rdcache_gen;
spin_unlock(&ci->i_ceph_lock);
- ceph_fscache_invalidate(inode);
+ ceph_fscache_invalidate(inode, false);
if (invalidate_inode_pages2(inode->i_mapping) < 0) {
pr_err("invalidate_inode_pages2 %llx.%llx failed\n",
ceph_vinop(inode));
@@ -1937,6 +1947,7 @@ retry:
ci->i_truncate_pending, to);
spin_unlock(&ci->i_ceph_lock);
+ ceph_fscache_resize(inode, to);
truncate_pagecache(inode, to);
spin_lock(&ci->i_ceph_lock);
@@ -2184,7 +2195,6 @@ int __ceph_setattr(struct inode *inode, struct iattr *attr)
if (inode_dirty_flags)
__mark_inode_dirty(inode, inode_dirty_flags);
-
if (mask) {
req->r_inode = inode;
ihold(inode);