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| author | Yan, Zheng <zyan@redhat.com> | 2015-09-07 15:46:24 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2015-09-09 09:52:29 +0300 |
| commit | 438386853d4c0c48fe73bf05a7d61c70ca5a3bfb (patch) | |
| tree | b760a610262df0e202e949cbb3b6f71726ff2c38 /fs/ceph/super.c | |
| parent | 55b0b31cbc09f80db384671e22cdc94b2aa26b29 (diff) | |
ceph: improve readahead for file holes
When readahead encounters file holes, osd reply returns error -ENOENT,
finish_read() skips adding pages to the the page cache. So readahead
does not work for file holes. The fix is adding zero pages to the
page cache when -ENOENT is returned.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/super.c')
0 files changed, 0 insertions, 0 deletions