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authorTim Chase <[email protected]>2014-01-18 13:00:53 -0600
committerBrian Behlendorf <[email protected]>2014-01-29 15:50:44 -0800
commit6d111134c0d1eb9b179eb9fddf26a31d5d45ae22 (patch)
tree58b2ef03d95ddcc6721574651ea223e7150c1763 /lib/libzfs
parent2278381ce2a820afe76dd9650298858d7037a01b (diff)
Implement relatime.
Add the "relatime" property. When set to "on", a file's atime will only be updated if the existing atime at least a day old or if the existing ctime or mtime has been updated since the last access. This behavior is compatible with the Linux "relatime" mount option. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2064 Closes #1917
Diffstat (limited to 'lib/libzfs')
-rw-r--r--lib/libzfs/libzfs_dataset.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/libzfs/libzfs_dataset.c b/lib/libzfs/libzfs_dataset.c
index 0acfa7923..e517e06bc 100644
--- a/lib/libzfs/libzfs_dataset.c
+++ b/lib/libzfs/libzfs_dataset.c
@@ -1421,6 +1421,7 @@ zfs_is_namespace_prop(zfs_prop_t prop)
switch (prop) {
case ZFS_PROP_ATIME:
+ case ZFS_PROP_RELATIME:
case ZFS_PROP_DEVICES:
case ZFS_PROP_EXEC:
case ZFS_PROP_SETUID:
@@ -1756,6 +1757,11 @@ get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src,
mntopt_off = MNTOPT_NOATIME;
break;
+ case ZFS_PROP_RELATIME:
+ mntopt_on = MNTOPT_RELATIME;
+ mntopt_off = MNTOPT_NORELATIME;
+ break;
+
case ZFS_PROP_DEVICES:
mntopt_on = MNTOPT_DEVICES;
mntopt_off = MNTOPT_NODEVICES;
@@ -1816,6 +1822,7 @@ get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src,
switch (prop) {
case ZFS_PROP_ATIME:
+ case ZFS_PROP_RELATIME:
case ZFS_PROP_DEVICES:
case ZFS_PROP_EXEC:
case ZFS_PROP_READONLY: