| commit | fb3296eb4636763918edef2d22e45b85b15d4518 | |
| author | Benny Halevy <bhalevy@panasas.com> | |
| Sun, 22 May 2011 16:47:26 +0000 (22 19:47 +0300) | ||
| committer | Boaz Harrosh <bharrosh@panasas.com> | |
| Sun, 29 May 2011 17:52:32 +0000 (29 20:52 +0300) | ||
| tree | 31c85255ccfa03cbca2d1e4e52028e489276a73b | treesnapshot (tar.gz zip) |
| parent | f7da7a129d57bfe0f74573dc03531c63e1360fae | commitdiff |
pnfs: Use byte-range for layoutget
Add offset and count parameters to pnfs_update_layout and use them to get
the layout in the pageio path.
Order cache layout segments in the following order:
* offset (ascending)
* length (descending)
* iomode (RW before READ)
Test byte range against the layout segment in use in pnfs_{read,write}_pg_test
so not to coalesce pages not using the same layout segment.
[fix lseg ordering]
[clean up pnfs_find_lseg lseg arg]
[remove unnecessary FIXME]
[fix ordering in pnfs_insert_layout]
[clean up pnfs_insert_layout]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Add offset and count parameters to pnfs_update_layout and use them to get
the layout in the pageio path.
Order cache layout segments in the following order:
* offset (ascending)
* length (descending)
* iomode (RW before READ)
Test byte range against the layout segment in use in pnfs_{read,write}_pg_test
so not to coalesce pages not using the same layout segment.
[fix lseg ordering]
[clean up pnfs_find_lseg lseg arg]
[remove unnecessary FIXME]
[fix ordering in pnfs_insert_layout]
[clean up pnfs_insert_layout]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| fs/nfs/pnfs.c | diffblobblamehistory | |
| fs/nfs/pnfs.h | diffblobblamehistory | |
| fs/nfs/read.c | diffblobblamehistory | |
| fs/nfs/write.c | diffblobblamehistory |