Re: [PATCH] Deadstore detected by Lukas Bulwahn's CodeChecker Tool (ELISA group)

From: Aurélien Aptel
Date: Wed May 12 2021 - 05:38:46 EST


wenhuizhang <wenhui@xxxxxxxxxxxxxx> writes:
> Deadstore detected by Lukas Bulwahn's CodeChecker Tool (ELISA group).
>
> line 741 struct cifsInodeInfo *cinode;
> line 747 cinode = CIFS_I(d_inode(cfile->dentry));
> could be deleted.
>
> cinode on filesystem should not be deleted when files are closed, they are representations of some data fields on a physical disk, thus no further action is required.
> The virtual inode on vfs will be handled by vfs automatically, and the denotation is inode, which is different from the cinode.
>
> Signed-off-by: wenhuizhang <wenhui@xxxxxxxxxxxxxx>

That's better but:
* the subject (first line of commit msg) should be about what the patch
actually does, usally with a prefix of the subsystem. So for example:
cifs: remove deadstore in cifs_close_all_deferred_files()
* the body of the commit msg should be wrapped around 80 cols to avoid
long lines unless you are quoting some output or urls

Cheers,
--
Aurélien Aptel / SUSE Labs Samba Team
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