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-rw-r--r--include/linux/netfs.h10
-rw-r--r--include/trace/events/netfs.h4
2 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index dd737344cff3..27e62f7d2940 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -73,6 +73,7 @@ struct netfs_inode {
#define NETFS_ICTX_UNBUFFERED 1 /* I/O should not use the pagecache */
#define NETFS_ICTX_WRITETHROUGH 2 /* Write-through caching */
#define NETFS_ICTX_MODIFIED_ATTR 3 /* Indicate change in mtime/ctime */
+#define NETFS_ICTX_SINGLE_NO_UPLOAD 4 /* Monolithic payload, cache but no upload */
};
/*
@@ -210,9 +211,11 @@ enum netfs_io_origin {
NETFS_READAHEAD, /* This read was triggered by readahead */
NETFS_READPAGE, /* This read is a synchronous read */
NETFS_READ_GAPS, /* This read is a synchronous read to fill gaps */
+ NETFS_READ_SINGLE, /* This read should be treated as a single object */
NETFS_READ_FOR_WRITE, /* This read is to prepare a write */
NETFS_DIO_READ, /* This is a direct I/O read */
NETFS_WRITEBACK, /* This write was triggered by writepages */
+ NETFS_WRITEBACK_SINGLE, /* This monolithic write was triggered by writepages */
NETFS_WRITETHROUGH, /* This write was made by netfs_perform_write() */
NETFS_UNBUFFERED_WRITE, /* This is an unbuffered write */
NETFS_DIO_WRITE, /* This is a direct I/O write */
@@ -408,6 +411,13 @@ ssize_t netfs_unbuffered_write_iter_locked(struct kiocb *iocb, struct iov_iter *
struct netfs_group *netfs_group);
ssize_t netfs_file_write_iter(struct kiocb *iocb, struct iov_iter *from);
+/* Single, monolithic object read/write API. */
+void netfs_single_mark_inode_dirty(struct inode *inode);
+ssize_t netfs_read_single(struct inode *inode, struct file *file, struct iov_iter *iter);
+int netfs_writeback_single(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct iov_iter *iter);
+
/* Address operations API */
struct readahead_control;
void netfs_readahead(struct readahead_control *);
diff --git a/include/trace/events/netfs.h b/include/trace/events/netfs.h
index fc237ff23a33..6df2e7313371 100644
--- a/include/trace/events/netfs.h
+++ b/include/trace/events/netfs.h
@@ -21,6 +21,7 @@
EM(netfs_read_trace_readahead, "READAHEAD") \
EM(netfs_read_trace_readpage, "READPAGE ") \
EM(netfs_read_trace_read_gaps, "READ-GAPS") \
+ EM(netfs_read_trace_read_single, "READ-SNGL") \
EM(netfs_read_trace_prefetch_for_write, "PREFETCHW") \
E_(netfs_read_trace_write_begin, "WRITEBEGN")
@@ -35,9 +36,11 @@
EM(NETFS_READAHEAD, "RA") \
EM(NETFS_READPAGE, "RP") \
EM(NETFS_READ_GAPS, "RG") \
+ EM(NETFS_READ_SINGLE, "R1") \
EM(NETFS_READ_FOR_WRITE, "RW") \
EM(NETFS_DIO_READ, "DR") \
EM(NETFS_WRITEBACK, "WB") \
+ EM(NETFS_WRITEBACK_SINGLE, "W1") \
EM(NETFS_WRITETHROUGH, "WT") \
EM(NETFS_UNBUFFERED_WRITE, "UW") \
EM(NETFS_DIO_WRITE, "DW") \
@@ -47,6 +50,7 @@
EM(netfs_rreq_trace_assess, "ASSESS ") \
EM(netfs_rreq_trace_copy, "COPY ") \
EM(netfs_rreq_trace_collect, "COLLECT") \
+ EM(netfs_rreq_trace_dirty, "DIRTY ") \
EM(netfs_rreq_trace_done, "DONE ") \
EM(netfs_rreq_trace_free, "FREE ") \
EM(netfs_rreq_trace_redirty, "REDIRTY") \