|author||Raghavendra G <firstname.lastname@example.org>||2009-08-23 22:36:28 +0000|
|committer||Anand V. Avati <email@example.com>||2009-09-08 01:42:43 -0700|
performance/stat-prefetch: implement sp_getdents.
Signed-off-by: Anand V. Avati <firstname.lastname@example.org> BUG: 221 (stat prefetch implementation) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=221
Diffstat (limited to 'doc')
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/stat-prefetch-design.txt b/doc/stat-prefetch-design.txt
index d10f841..12c13cc 100644
@@ -118,7 +118,13 @@ fops to be implemented:
2. for each of the entry in the direntry list, delete from cache stored in
context of fd, the entry corresponding to basename of path being passed.
+ 1. remove entry corresponding to basename of path on which fd is opened from
+ cache stored in parent, since getdents changes st_atime.
+ 2. remove entries corresponding to symbolic links from cache, since readlink
+ would've changed st_atime.
These calls modify various times of stat structure, hence appropriate entries
have to be removed from the cache. I am leaving these calls unimplemented in
stat-prefetch for timebeing. Once we have a working translator, these five fops