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Use O_NOATIME on devices if available.

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This commit is contained in:
Alasdair Kergon 2004-09-14 22:23:23 +00:00
parent 19d1e7102c
commit 60bd717971
2 changed files with 7 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.00.23 - Version 2.00.23 -
==================================== ====================================
Use O_NOATIME on devices if available.
Write log message when each segtype/format gets initialised. Write log message when each segtype/format gets initialised.
New commands 'segtypes' and 'formats'. New commands 'segtypes' and 'formats'.
Suppress pvmove abort message in test mode. Suppress pvmove abort message in test mode.

6
lib/device/dev-io.c
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@ -300,6 +300,12 @@ int dev_open_flags(struct device *dev, int flags, int direct, int quiet)
flags |= O_DIRECT; flags |= O_DIRECT;
#endif #endif
#ifdef O_NOATIME
/* Don't update atime on device inodes */
if (!(dev->flags & DEV_REGULAR))
flags |= O_NOATIME;
#endif
if ((dev->fd = open(name, flags, 0777)) < 0) { if ((dev->fd = open(name, flags, 0777)) < 0) {
log_sys_error("open", name); log_sys_error("open", name);
return 0; return 0;