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ceph: add non-blocking parameter to ceph_try_get_caps()

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ceph_try_get_caps currently calls try_get_cap_refs with the nonblock
parameter always set to 'true'.  This change adds a new parameter that
allows to set it's value.  This will be useful for a follow-up patch that
will need to get two sets of capabilities for two different inodes without
risking a deadlock.

Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Luis Henriques
2018-10-15 16:45:57 +01:00
committed by Ilya Dryomov
parent 98c4bfe9d8
commit 2ee9dd958d
3 changed files with 6 additions and 5 deletions
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fs/ceph/super.h
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@@ -1008,7 +1008,7 @@ extern int ceph_encode_dentry_release(void **p, struct dentry *dn,
extern int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
loff_t endoff, int *got, struct page **pinned_page);
extern int ceph_try_get_caps(struct ceph_inode_info *ci,
int need, int want, int *got);
int need, int want, bool nonblock, int *got);
/* for counting open files by mode */
extern void __ceph_get_fmode(struct ceph_inode_info *ci, int mode);