Messages in this thread | | | Date | Mon, 21 Mar 2022 22:41:51 +0000 | From | Eric Biggers <> | Subject | Re: [f2fs-dev] [PATCH] f2fs: introduce data read/write showing path info |
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On Mon, Mar 21, 2022 at 03:33:15PM -0700, Jaegeuk Kim wrote: > This was used in Android for a long time. Let's upstream it. >
You still need to explain why this is useful.
> +static inline char *f2fs_get_pathname(char *buf, int len, struct inode *inode) > +{ > + char *path; > + struct dentry *d; > + > + /* > + * d_obtain_alias() will either iput() if it locates an existing > + * dentry or transfer the reference to the new dentry created. > + * So get an extra reference here. > + */ > + ihold(inode); > + d = d_obtain_alias(inode);
Why does this use d_obtain_alias() to get a dentry instead of just using the dentry of the open file?
- Eric
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