mirrors/scoutfs
1
0
Fork 0
mirror of https://github.com/versity/scoutfs.git synced 2026-09-18 22:14:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

scoutfs: add d_revalidate trace

Browse Source 
Add a trace event to get some visibility into dentry revalidation.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2018-03-09 14:29:55 -08:00
committed by Zach Brown
parent 2136a973ed
commit 951b6d8dcd
2 changed files with 46 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kmod/src/dir.c
+6 -3
View File
@@ -269,9 +269,10 @@ static int scoutfs_d_revalidate(struct dentry *dentry, unsigned int flags)
{
struct super_block *sb = dentry->d_sb;
struct dentry_info *di = dentry->d_fsdata;
struct dentry *parent = dget_parent(dentry);
struct scoutfs_lock *lock = NULL;
struct scoutfs_dirent dent;
struct dentry *parent = NULL;
bool is_covered = false;
struct inode *dir;
u64 dentry_ino;
int ret;
@@ -300,13 +301,13 @@ static int scoutfs_d_revalidate(struct dentry *dentry, unsigned int flags)
goto out;
}
if (scoutfs_lock_is_covered(sb, &di->lock_cov)) {
is_covered = scoutfs_lock_is_covered(sb, &di->lock_cov);
if (is_covered) {
scoutfs_inc_counter(sb, dentry_revalidate_locked);
ret = 1;
goto out;
}
parent = dget_parent(dentry);
if (!parent || !parent->d_inode) {
scoutfs_inc_counter(sb, dentry_revalidate_orphan);
ret = 0;
@@ -338,6 +339,8 @@ static int scoutfs_d_revalidate(struct dentry *dentry, unsigned int flags)
}
out:
trace_scoutfs_d_revalidate(sb, dentry, flags, parent, is_covered, ret);
dput(parent);
scoutfs_unlock(sb, lock, DLM_LOCK_PR);