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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-01-04 13:19:55 -0500
committerTrond Myklebust <trond.myklebust@primarydata.com>2016-01-04 13:19:55 -0500
commit942e3d72a62dcfe5bf1569b179174718bbbcfbc3 (patch)
treeb13189dfe2f9a86123aee14ef365d9e9729d46cb /fs/nfs/pnfs.h
parent58baac0ac7cc13a690f6f7cea23accaf84e843a0 (diff)
parent506c0d68269e90d354b3cbfc7523611b026c88d0 (diff)
downloadlinux-942e3d72a62dcfe5bf1569b179174718bbbcfbc3.tar.bz2
Merge branch 'pnfs_generic'
* pnfs_generic: NFSv4.1/pNFS: Cleanup constify struct pnfs_layout_range arguments NFSv4.1/pnfs: Cleanup copying of pnfs_layout_range structures NFSv4.1/pNFS: Cleanup pnfs_mark_matching_lsegs_invalid() NFSv4.1/pNFS: Fix a race in initiate_file_draining() NFSv4.1/pNFS: pnfs_error_mark_layout_for_return() must always return layout NFSv4.1/pNFS: pnfs_mark_matching_lsegs_return() should set the iomode NFSv4.1/pNFS: Use nfs4_stateid_copy for copying stateids NFSv4.1/pNFS: Don't pass stateids by value to pnfs_send_layoutreturn() NFS: Relax requirements in nfs_flush_incompatible NFSv4.1/pNFS: Don't queue up a new commit if the layout segment is invalid NFS: Allow multiple commit requests in flight per file NFS/pNFS: Fix up pNFS write reschedule layering violations and bugs NFSv4: List stateid information in the callback tracepoints NFSv4.1/pNFS: Don't return NFS4ERR_DELAY unnecessarily in CB_LAYOUTRECALL NFSv4.1/pNFS: Ensure we enforce RFC5661 Section 12.5.5.2.1 pNFS: If we have to delay the layout callback, mark the layout for return NFSv4.1/pNFS: Add a helper to mark the layout as returned pNFS: Ensure nfs4_layoutget_prepare returns the correct error
Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h33
1 files changed, 31 insertions, 2 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 6916ff4e86f9..9f4e2a47f4aa 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -260,11 +260,14 @@ void pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo,
bool update_barrier);
int pnfs_choose_layoutget_stateid(nfs4_stateid *dst,
struct pnfs_layout_hdr *lo,
- struct pnfs_layout_range *range,
+ const struct pnfs_layout_range *range,
struct nfs4_state *open_state);
int pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
struct list_head *tmp_list,
- struct pnfs_layout_range *recall_range);
+ const struct pnfs_layout_range *recall_range);
+int pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo,
+ struct list_head *tmp_list,
+ const struct pnfs_layout_range *recall_range);
bool pnfs_roc(struct inode *ino);
void pnfs_roc_release(struct inode *ino);
void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
@@ -388,6 +391,12 @@ pnfs_get_lseg(struct pnfs_layout_segment *lseg)
return lseg;
}
+static inline bool
+pnfs_is_valid_lseg(struct pnfs_layout_segment *lseg)
+{
+ return test_bit(NFS_LSEG_VALID, &lseg->pls_flags) != 0;
+}
+
/* Return true if a layout driver is being used for this mountpoint */
static inline int pnfs_enabled_sb(struct nfs_server *nfss)
{
@@ -535,6 +544,26 @@ pnfs_calc_offset_length(u64 offset, u64 end)
return 1 + end - offset;
}
+/**
+ * pnfs_mark_layout_returned_if_empty - marks the layout as returned
+ * @lo: layout header
+ *
+ * Note: Caller must hold inode->i_lock
+ */
+static inline void
+pnfs_mark_layout_returned_if_empty(struct pnfs_layout_hdr *lo)
+{
+ if (list_empty(&lo->plh_segs))
+ set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
+}
+
+static inline void
+pnfs_copy_range(struct pnfs_layout_range *dst,
+ const struct pnfs_layout_range *src)
+{
+ memcpy(dst, src, sizeof(*dst));
+}
+
extern unsigned int layoutstats_timer;
#ifdef NFS_DEBUG