xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

xfs: remove the io_type field from the writeback context and ioend

Browse Source 
The io_type field contains what is basically a summary of information
from the inode fork and the imap.  But we can just as easily use that
information directly, simplifying a few bits here and there and
improving the trace points.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig
2019-02-15 08:02:46 -08:00
committed by Darrick J. Wong
parent c4a6bf7f6c
commit be225fec72
5 changed files with 63 additions and 98 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
fs/xfs/xfs_aops.h
View File

@@ -8,33 +8,13 @@
extern struct bio_set xfs_ioend_bioset;
/*
* Types of I/O for bmap clustering and I/O completion tracking.
*
* This enum is used in string mapping in xfs_trace.h; please keep the
* TRACE_DEFINE_ENUMs for it up to date.
*/
enum {
XFS_IO_HOLE, /* covers region without any block allocation */
XFS_IO_DELALLOC, /* covers delalloc region */
XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */
XFS_IO_OVERWRITE, /* covers already allocated extent */
XFS_IO_COW, /* covers copy-on-write extent */
};
#define XFS_IO_TYPES \
{ XFS_IO_HOLE, "hole" }, \
{ XFS_IO_DELALLOC, "delalloc" }, \
{ XFS_IO_UNWRITTEN, "unwritten" }, \
{ XFS_IO_OVERWRITE, "overwrite" }, \
{ XFS_IO_COW, "CoW" }
/*
* Structure for buffered I/O completions.
*/
struct xfs_ioend {
struct list_head io_list; /* next ioend in chain */
unsigned int io_type; /* delalloc / unwritten */
int io_fork; /* inode fork written back */
xfs_exntst_t io_state; /* extent state */
struct inode *io_inode; /* file being written to */
size_t io_size; /* size of the extent */
xfs_off_t io_offset; /* offset in the file */