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[Dazuko-devel] patch 5 for dazukofs release 3.0.0
From: |
Lino Sanfilippo |
Subject: |
[Dazuko-devel] patch 5 for dazukofs release 3.0.0 |
Date: |
Tue, 21 Apr 2009 19:16:20 +0200 |
User-agent: |
IceDove 1.5.0.14eol (X11/20090105) |
This patch is not a bug fix, but useful to increase performance:
dazukofs reports open events for all kind of files. But this does
mainly make sense for regular files (who wants to check
fifos for malware?).
Thus a simple check ensures that only open events for regular
files are announced to userspace.
(On my system a simple "find" command executed in /usr which was
mounted with dazukofs resulted in over 90000 context switches -
only caused by opening directories..)
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diff -rup dazukofs-3.0.0-p4/file.c dazukofs-3.0.0-p5/file.c
--- dazukofs-3.0.0-p4/file.c 2009-03-15 19:07:06.000000000 +0100
+++ dazukofs-3.0.0-p5/file.c 2009-03-15 19:26:14.000000000 +0100
@@ -177,9 +177,11 @@ static int dazukofs_open(struct inode *i
struct file *lower_file;
int err;
- err = dazukofs_check_access(file->f_dentry, file->f_vfsmnt);
- if (err)
- goto error_out1;
+ if (S_ISREG(inode->i_mode)) {
+ err = dazukofs_check_access(file->f_dentry, file->f_vfsmnt);
+ if (err)
+ goto error_out1;
+ }
SET_FILE_INFO(file, kmem_cache_zalloc(dazukofs_file_info_cachep,
GFP_KERNEL));
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