| commit | 969cb9ac744d6962dd23acc42c52bf418251987d | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Wed, 18 Oct 2017 06:40:29 +0000 (17 23:40 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Wed, 18 Oct 2017 06:40:29 +0000 (17 23:40 -0700) | ||
| tree | 84894c9a1974f7fa08ee021faa275c6fdd8d4a28 | treesnapshot (tar.gz zip) |
| parent | 0c5ceff2867c71bf573ba43090853e2819c0e60d | commitdiff |
kernel - Use soft-busy in vop_helper_read_shortcut()
* Use a soft-busy for related VM pages in vop_helper_read_shortcut().
This prevents locking conflicts related to concurrent read() operation
from causing the routine to abort.
Related software can run optimized I/O from related VM pages
concurrently without conflict. This occurs in particular with
the concurrent exec*() of dynamic executables.
* Use a soft-busy for related VM pages in vop_helper_read_shortcut().
This prevents locking conflicts related to concurrent read() operation
from causing the routine to abort.
Related software can run optimized I/O from related VM pages
concurrently without conflict. This occurs in particular with
the concurrent exec*() of dynamic executables.
| sys/kern/vfs_helper.c | diffblobblamehistory |