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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-26 14:10:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-26 14:10:32 -0700
commita10c38a4f385f5d7c173a263ff6bb2d36021b3bb (patch)
tree3cbaa916940b36a9fdb27c8a231e1488fbc352d6 /fs/ceph/super.h
parentea8ea737c46cffa5d0ee74309f81e55a7e5e9c2a (diff)
parente536030934aebf049fe6aaebc58dd37aeee21840 (diff)
downloadop-kernel-dev-a10c38a4f385f5d7c173a263ff6bb2d36021b3bb.zip
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph updates from Sage Weil: "This changeset has a few main parts: - Ilya has finished a huge refactoring effort to sync up the client-side logic in libceph with the user-space client code, which has evolved significantly over the last couple years, with lots of additional behaviors (e.g., how requests are handled when cluster is full and transitions from full to non-full). This structure of the code is more closely aligned with userspace now such that it will be much easier to maintain going forward when behavior changes take place. There are some locking improvements bundled in as well. - Zheng adds multi-filesystem support (multiple namespaces within the same Ceph cluster) - Zheng has changed the readdir offsets and directory enumeration so that dentry offsets are hash-based and therefore stable across directory fragmentation events on the MDS. - Zheng has a smorgasbord of bug fixes across fs/ceph" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (71 commits) ceph: fix wake_up_session_cb() ceph: don't use truncate_pagecache() to invalidate read cache ceph: SetPageError() for writeback pages if writepages fails ceph: handle interrupted ceph_writepage() ceph: make ceph_update_writeable_page() uninterruptible libceph: make ceph_osdc_wait_request() uninterruptible ceph: handle -EAGAIN returned by ceph_update_writeable_page() ceph: make fault/page_mkwrite return VM_FAULT_OOM for -ENOMEM ceph: block non-fatal signals for fault/page_mkwrite ceph: make logical calculation functions return bool ceph: tolerate bad i_size for symlink inode ceph: improve fragtree change detection ceph: keep leaf frag when updating fragtree ceph: fix dir_auth check in ceph_fill_dirfrag() ceph: don't assume frag tree splits in mds reply are sorted ceph: fix inode reference leak ceph: using hash value to compose dentry offset ceph: don't forbid marking directory complete after forward seek ceph: record 'offset' for each entry of readdir result ceph: define 'end/complete' in readdir reply as bit flags ...
Diffstat (limited to 'fs/ceph/super.h')
-rw-r--r--fs/ceph/super.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 7b99eb7..0130a85 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -62,6 +62,7 @@ struct ceph_mount_options {
int cap_release_safety;
int max_readdir; /* max readdir result (entires) */
int max_readdir_bytes; /* max readdir result (bytes) */
+ int mds_namespace;
/*
* everything above this point can be memcmp'd; everything below
@@ -69,6 +70,7 @@ struct ceph_mount_options {
*/
char *snapdir_name; /* default ".snap" */
+ char *server_path; /* default "/" */
};
struct ceph_fs_client {
@@ -295,6 +297,7 @@ struct ceph_inode_info {
u64 i_files, i_subdirs;
struct rb_root i_fragtree;
+ int i_fragtree_nsplits;
struct mutex i_fragtree_mutex;
struct ceph_inode_xattrs_info i_xattrs;
@@ -469,6 +472,7 @@ static inline struct inode *ceph_find_inode(struct super_block *sb,
#define CEPH_I_POOL_RD (1 << 5) /* can read from pool */
#define CEPH_I_POOL_WR (1 << 6) /* can write to pool */
#define CEPH_I_SEC_INITED (1 << 7) /* security initialized */
+#define CEPH_I_CAP_DROPPED (1 << 8) /* caps were forcibly dropped */
static inline void __ceph_dir_set_complete(struct ceph_inode_info *ci,
long long release_count,
@@ -537,11 +541,6 @@ static inline struct ceph_dentry_info *ceph_dentry(struct dentry *dentry)
return (struct ceph_dentry_info *)dentry->d_fsdata;
}
-static inline loff_t ceph_make_fpos(unsigned frag, unsigned off)
-{
- return ((loff_t)frag << 32) | (loff_t)off;
-}
-
/*
* caps helpers
*/
@@ -632,7 +631,6 @@ struct ceph_file_info {
struct ceph_mds_request *last_readdir;
/* readdir: position within a frag */
- unsigned offset; /* offset of last chunk, adjusted for . and .. */
unsigned next_offset; /* offset of next chunk (last_name's + 1) */
char *last_name; /* last entry in previous chunk */
long long dir_release_count;
@@ -927,6 +925,7 @@ extern void ceph_pool_perm_destroy(struct ceph_mds_client* mdsc);
/* file.c */
extern const struct file_operations ceph_file_fops;
+extern int ceph_renew_caps(struct inode *inode);
extern int ceph_open(struct inode *inode, struct file *file);
extern int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
struct file *file, unsigned flags, umode_t mode,
@@ -942,6 +941,7 @@ extern const struct inode_operations ceph_snapdir_iops;
extern const struct dentry_operations ceph_dentry_ops, ceph_snap_dentry_ops,
ceph_snapdir_dentry_ops;
+extern loff_t ceph_make_fpos(unsigned high, unsigned off, bool hash_order);
extern int ceph_handle_notrace_create(struct inode *dir, struct dentry *dentry);
extern int ceph_handle_snapdir(struct ceph_mds_request *req,
struct dentry *dentry, int err);
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