config JFS_FS tristate "JFS filesystem support" select NLS select CRC32 help This is a port of IBM's Journaled Filesystem . More information is available in the file . If you do not intend to use the JFS filesystem, say N. config JFS_POSIX_ACL bool "JFS POSIX Access Control Lists" depends on JFS_FS select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website . If you don't know what Access Control Lists are, say N config JFS_SECURITY bool "JFS Security Labels" depends on JFS_FS help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the jfs filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config JFS_DEBUG bool "JFS debugging" depends on JFS_FS help If you are experiencing any problems with the JFS filesystem, say Y here. This will result in additional debugging messages to be written to the system log. Under normal circumstances, this results in very little overhead. config JFS_STATISTICS bool "JFS statistics" depends on JFS_FS help Enabling this option will cause statistics from the JFS file system to be made available to the user in the /proc/fs/jfs/ directory. gi/linux/net-next.git/'>summaryrefslogtreecommitdiff
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authorDexuan Cui <decui@microsoft.com>2017-01-28 11:46:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-31 10:59:48 +0100
commit433e19cf33d34bb6751c874a9c00980552fe508c (patch)
treece6547ef2987fbb289fa28f03536328a42781651 /include/net/irda/iriap_event.h
parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/irda/iriap_event.h')