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gfs2: Minor gfs2_lookup_by_inum cleanup

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Use a zero no_formal_ino instead of a NULL pointer to indicate that any inode
generation number will qualify: a valid inode never has a zero no_formal_ino.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher
2020-01-15 05:31:38 +01:00
parent 9e73330f29
commit 6bdcadea75
4 changed files with 14 additions and 5 deletions
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11
fs/gfs2/inode.c
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@@ -207,8 +207,15 @@ fail:
return ERR_PTR(error);
}
/**
* gfs2_lookup_by_inum - look up an inode by inode number
* @sdp: The super block
* @no_addr: The inode number
* @no_formal_ino: The inode generation number (0 for any)
* @blktype: Requested block type (see gfs2_inode_lookup)
*/
struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
u64 *no_formal_ino, unsigned int blktype)
u64 no_formal_ino, unsigned int blktype)
{
struct super_block *sb = sdp->sd_vfs;
struct inode *inode;
@@ -221,7 +228,7 @@ struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
/* Two extra checks for NFS only */
if (no_formal_ino) {
error = -ESTALE;
if (GFS2_I(inode)->i_no_formal_ino != *no_formal_ino)
if (GFS2_I(inode)->i_no_formal_ino != no_formal_ino)
goto fail_iput;
error = -EIO;