Ned Bass f1a05fa114 Fix false ENOENT on snapshot control dentries ... Lookups in the snapshot control directory for an existing snapshot fail with ENOENT if an earlier lookup failed before the snapshot was created. This is because the earlier lookup causes a negative dentry to be cached which is never invalidated. The bug can be reproduced as follows (the second ls should succeed): $ ls /tank/.zfs/snapshot/s ls: cannot access /tank/.zfs/snapshot/s: No such file or directory $ zfs snap tank@s $ ls /tank/.zfs/snapshot/s ls: cannot access /tank/.zfs/snapshot/s: No such file or directory To remedy this, always invalidate cached dentries in the snapshot control directory. Since these entries never exist on disk there is no significant performance penalty for the extra lookups. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1192		2013-01-16 16:28:54 -08:00
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avl	Add script for builtin module building.	2012-07-26 13:45:09 -07:00
nvpair	Illumos #2619 and #2747	2013-01-08 10:35:35 -08:00
unicode	Add script for builtin module building.	2012-07-26 13:45:09 -07:00
zcommon	Illumos #2619 and #2747	2013-01-08 10:35:35 -08:00
zfs	Fix false ENOENT on snapshot control dentries	2013-01-16 16:28:54 -08:00
zpios	call_usermodehelper() should wait for process	2013-01-09 16:54:52 -08:00
.gitignore	Add .gitignore files to exclude build products	2010-01-08 11:35:17 -08:00
Makefile.in	Add script for builtin module building.	2012-07-26 13:45:09 -07:00