Hi Liu, You're right, we should release it instead of holding the resource with no use. And here are some comments as following. BTW, your patch is out of format. You'd better not let remote terminal or editor to instead tab with blanks in the patch. Thanks, Yu > -----Original Message----- > From: Younger Liu [mailto:younger.liucn@xxxxxxxxx] > Sent: Monday, December 02, 2013 9:16 PM > To: Jaegeuk Kim > Cc: fs-devel; kernel; f2fs > Subject: [f2fs-dev] [PATCH 0/2] f2fs: remove debufs dir if debugfs_create_file() failed > > From: Younger Liu <liuyiyang@xxxxxxxxxxx> > > When debugfs_create_file() failed in f2fs_create_root_stats(), > debugfs_root should be removed. > > Signed-off-by: Younger Liu <liuyiyang@xxxxxxxxxxx> > Cc: Younger Liu <younger.liucn@xxxxxxxxx> > Cc: Jaegeuk Kim <jaegeuk.kim@xxxxxxxxxxx> > --- > fs/f2fs/debug.c | 20 +++++++++++++++++--- > 1 file changed, 17 insertions(+), 3 deletions(-) > > diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c > index a84b0a8..d27b689 100644 > --- a/fs/f2fs/debug.c > +++ b/fs/f2fs/debug.c > @@ -340,10 +340,24 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi) > > void __init f2fs_create_root_stats(void) > { > + struct dentry *file; > + > debugfs_root = debugfs_create_dir("f2fs", NULL); > - if (debugfs_root) > - debugfs_create_file("status", S_IRUGO, debugfs_root, > - NULL, &stat_fops); > + if (!debugfs_root) > + goto bail; > + > + file = debugfs_create_file("status", S_IRUGO, > + debugfs_root, NULL, &stat_fops); > + if (!file) > + goto free_debugfs_dir; > + > + return; > + > +free_debugfs_dir: > + debugfs_remove(debugfs_root); debugfs_root = NULL; > + > +bail: > + return; > } > > void f2fs_destroy_root_stats(void) You should judge debugfs_root value in f2fs_destroy_root_stats to decide free or not. > -- > 1.7.9.5 > > > > ------------------------------------------------------------------------------ > Rapidly troubleshoot problems before they affect your business. Most IT > organizations don't have a clear picture of how application performance > affects their revenue. With AppDynamics, you get 100% visibility into your > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! > http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk > _______________________________________________ > Linux-f2fs-devel mailing list > Linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
