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authorTakashi Iwai <tiwai@suse.de>2018-03-12 17:30:38 +0100
committerTakashi Iwai <tiwai@suse.de>2018-03-12 17:30:38 +0100
commitdb45dc9540ea4864bb9d22eed30d3e70ed5d56d4 (patch)
treec611d75097036ff464e9af31aa729e34c863ec93 /fs/ceph/caps.c
parentALSA: hda - Revert power_save option default value (diff)
parentMerge remote-tracking branches 'asoc/fix/amd', 'asoc/fix/hdmi-codec', 'asoc/f... (diff)
downloadlinux-db45dc9540ea4864bb9d22eed30d3e70ed5d56d4.tar.xz
linux-db45dc9540ea4864bb9d22eed30d3e70ed5d56d4.zip
Merge tag 'asoc-fix-v4.16-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.16 This is a fairly standard collection of fixes, there's no changes to the core here just a bunch of small device specific changes for single drivers plus an update to the MAINTAINERS file for the sgl5000.
Diffstat (limited to 'fs/ceph/caps.c')
-rw-r--r--fs/ceph/caps.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 6582c4507e6c..0e5bd3e3344e 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -3965,6 +3965,32 @@ void ceph_put_fmode(struct ceph_inode_info *ci, int fmode)
}
/*
+ * For a soon-to-be unlinked file, drop the AUTH_RDCACHE caps. If it
+ * looks like the link count will hit 0, drop any other caps (other
+ * than PIN) we don't specifically want (due to the file still being
+ * open).
+ */
+int ceph_drop_caps_for_unlink(struct inode *inode)
+{
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ int drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL;
+
+ spin_lock(&ci->i_ceph_lock);
+ if (inode->i_nlink == 1) {
+ drop |= ~(__ceph_caps_wanted(ci) | CEPH_CAP_PIN);
+
+ ci->i_ceph_flags |= CEPH_I_NODELAY;
+ if (__ceph_caps_dirty(ci)) {
+ struct ceph_mds_client *mdsc =
+ ceph_inode_to_client(inode)->mdsc;
+ __cap_delay_requeue_front(mdsc, ci);
+ }
+ }
+ spin_unlock(&ci->i_ceph_lock);
+ return drop;
+}
+
+/*
* Helpers for embedding cap and dentry lease releases into mds
* requests.
*