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| author | Bob Peterson <rpeterso@redhat.com> | 2011-10-27 12:16:06 -0400 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2011-11-08 09:52:12 +0000 |
| commit | dfe4d34b39b80faff52489f950a18523da7581bf (patch) | |
| tree | be478e2c4988612eef88a1669f774dd8f9f9b8af /fs/gfs2/dir.h | |
| parent | 20ed0535d35b74c9e4fa5777766d6e836fe3c90c (diff) | |
| download | op-kernel-dev-dfe4d34b39b80faff52489f950a18523da7581bf.zip op-kernel-dev-dfe4d34b39b80faff52489f950a18523da7581bf.tar.gz | |
GFS2: Add readahead to sequential directory traversal
This patch adds read-ahead capability to GFS2's
directory hash table management. It greatly improves
performance for some directory operations. For example:
In one of my file systems that has 1000 directories, each
of which has 1000 files, time to execute a recursive
ls (time ls -fR /mnt/gfs2 > /dev/null) was reduced
from 2m2.814s on a stock kernel to 0m45.938s.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/dir.h')
| -rw-r--r-- | fs/gfs2/dir.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/gfs2/dir.h b/fs/gfs2/dir.h index ff5772f..98c960b 100644 --- a/fs/gfs2/dir.h +++ b/fs/gfs2/dir.h @@ -25,7 +25,7 @@ extern int gfs2_dir_add(struct inode *inode, const struct qstr *filename, const struct gfs2_inode *ip); extern int gfs2_dir_del(struct gfs2_inode *dip, const struct dentry *dentry); extern int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque, - filldir_t filldir); + filldir_t filldir, struct file_ra_state *f_ra); extern int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename, const struct gfs2_inode *nip, unsigned int new_type); |
