litmus-rt-ext-res.git - LITMUS^RT with extended reservations for Forbidden Zones paper @ RTAS'20

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author	Benjamin Marzinski <bmarzins@redhat.com>	2015-12-09 08:46:33 -0500
committer	Bob Peterson <rpeterso@redhat.com>	2015-12-14 13:19:41 -0500
commit	400ac52e805bb6852e743817bc05a136e85042a9 (patch)
tree	2876b8f8f47852207eed3ad9d6bb02030744e6b3 /lib/mpi/mpi-bit.c
parent	471f3db2786bc32011d6693413eb93b0c3da2579 (diff)

gfs2: clear journal live bit in gfs2_log_flush

When gfs2 was unmounting filesystems or changing them to read-only it was clearing the SDF_JOURNAL_LIVE bit before the final log flush. This caused a race. If an inode glock got demoted in the gap between clearing the bit and the shutdown flush, it would be unable to reserve log space to clear out the active items list in inode_go_sync, causing an error in inode_go_inval because the glock was still dirty. To solve this, the SDF_JOURNAL_LIVE bit is now cleared inside the shutdown log flush. This means that, because of the locking on the log blocks, either inode_go_sync will be able to reserve space to clean the glock before the shutdown flush, or the shutdown flush will clean the glock itself, before inode_go_sync fails to reserve the space. Either way, the glock will be clean before inode_go_inval. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>

Diffstat (limited to 'lib/mpi/mpi-bit.c')

0 files changed, 0 insertions, 0 deletions

# # File system configuration # menu "File systems" # Use unaligned word dcache accesses config DCACHE_WORD_ACCESS bool if BLOCK source "fs/ext2/Kconfig" source "fs/ext3/Kconfig" source "fs/ext4/Kconfig" config FS_XIP # execute in place bool depends on EXT2_FS_XIP default y source "fs/jbd/Kconfig" source "fs/jbd2/Kconfig" config FS_MBCACHE # Meta block cache for Extended Attributes (ext2/ext3/ext4) tristate default y if EXT2_FS=y && EXT2_FS_XATTR default y if EXT3_FS=y && EXT3_FS_XATTR default y if EXT4_FS=y default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS source "fs/reiserfs/Kconfig" source "fs/jfs/Kconfig" source "fs/xfs/Kconfig" source "fs/gfs2/Kconfig" source "fs/ocfs2/Kconfig" source "fs/btrfs/Kconfig" source "fs/nilfs2/Kconfig" endif # BLOCK # Posix ACL utility routines # # Note: Posix ACLs can be implemented without these helpers. Never use # this symbol for ifdefs in core code. # config FS_POSIX_ACL def_bool n config EXPORTFS tristate config FILE_LOCKING bool "Enable POSIX file locking API" if EXPERT default y help This option enables standard file locking support, required for filesystems like NFS and for the flock() system call. Disabling this option saves about 11k. source "fs/notify/Kconfig" source "fs/quota/Kconfig" source "fs/autofs4/Kconfig" source "fs/fuse/Kconfig" source "fs/overlayfs/Kconfig" menu "Caches" source "fs/fscache/Kconfig" source "fs/cachefiles/Kconfig" endmenu if BLOCK menu "CD-ROM/DVD Filesystems" source "fs/isofs/Kconfig" source "fs/udf/Kconfig" endmenu endif # BLOCK if BLOCK menu "DOS/FAT/NT Filesystems" source "fs/fat/Kconfig" source "fs/ntfs/Kconfig" endmenu endif # BLOCK menu "Pseudo filesystems" source "fs/proc/Kconfig" source "fs/kernfs/Kconfig" source "fs/sysfs/Kconfig" config TMPFS bool "Tmpfs virtual memory file system support (former shm fs)" depends on SHMEM help Tmpfs is a file system which keeps all files in virtual memory. Everything in tmpfs is temporary in the sense that no files will be created on your hard drive. The files live in memory and swap space. If you unmount a tmpfs instance, everything stored therein is lost. See <file:Documentation/filesystems/tmpfs.txt> for details. config TMPFS_POSIX_ACL bool "Tmpfs POSIX Access Control Lists" depends on TMPFS select TMPFS_XATTR select FS_POSIX_ACL help POSIX Access Control Lists (ACLs) support additional access rights for users and groups beyond the standard owner/group/world scheme, and this option selects support for ACLs specifically for tmpfs filesystems. If you've selected TMPFS, it's possible that you'll also need this option as there are a number of Linux distros that require POSIX ACL support under /dev for certain features to work properly. For example, some distros need this feature for ALSA-related /dev files for sound to work properly. In short, if you're not sure, say Y. To learn more about Access Control Lists, visit the POSIX ACLs for Linux website <http://acl.bestbits.at/>. config TMPFS_XATTR bool "Tmpfs extended attributes" depends on TMPFS default n help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit <http://acl.bestbits.at/> for details). Currently this enables support for the trusted.* and security.* namespaces. You need this for POSIX ACL support on tmpfs. If unsure, say N. config HUGETLBFS bool "HugeTLB file system support" depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \ SYS_SUPPORTS_HUGETLBFS || BROKEN help hugetlbfs is a filesystem backing for HugeTLB pages, based on ramfs. For architectures that support it, say Y here and read <file:Documentation/vm/hugetlbpage.txt> for details. If unsure, say N. config HUGETLB_PAGE def_bool HUGETLBFS source "fs/configfs/Kconfig" endmenu menuconfig MISC_FILESYSTEMS bool "Miscellaneous filesystems" default y ---help--- Say Y here to get to see options for various miscellaneous filesystems, such as filesystems that came from other operating systems. This option alone does not add any kernel code. If you say N, all options in this submenu will be skipped and disabled; if unsure, say Y here. if MISC_FILESYSTEMS source "fs/adfs/Kconfig" source "fs/affs/Kconfig" source "fs/ecryptfs/Kconfig" source "fs/hfs/Kconfig" source "fs/hfsplus/Kconfig" source "fs/befs/Kconfig" source "fs/bfs/Kconfig" source "fs/efs/Kconfig" source "fs/jffs2/Kconfig" # UBIFS File system configuration source "fs/ubifs/Kconfig" source "fs/logfs/Kconfig" source "fs/cramfs/Kconfig" source "fs/squashfs/Kconfig" source "fs/freevxfs/Kconfig" source "fs/minix/Kconfig" source "fs/omfs/Kconfig" source "fs/hpfs/Kconfig" source "fs/qnx4/Kconfig" source "fs/qnx6/Kconfig" source "fs/romfs/Kconfig" source "fs/pstore/Kconfig" source "fs/sysv/Kconfig" source "fs/ufs/Kconfig" source "fs/exofs/Kconfig" source "fs/f2fs/Kconfig" source "fs/efivarfs/Kconfig" endif # MISC_FILESYSTEMS source "fs/exofs/Kconfig.ore" menuconfig NETWORK_FILESYSTEMS bool "Network File Systems" default y depends on NET ---help--- Say Y here to get to see options for network filesystems and filesystem-related networking code, such as NFS daemon and RPCSEC security modules. This option alone does not add any kernel code. If you say N, all options in this submenu will be skipped and disabled; if unsure, say Y here. if NETWORK_FILESYSTEMS source "fs/nfs/Kconfig" source "fs/nfsd/Kconfig" config GRACE_PERIOD tristate config LOCKD tristate depends on FILE_LOCKING select GRACE_PERIOD config LOCKD_V4 bool depends on NFSD_V3 || NFS_V3 depends on FILE_LOCKING default y config NFS_ACL_SUPPORT tristate select FS_POSIX_ACL config NFS_COMMON bool depends on NFSD || NFS_FS || LOCKD default y source "net/sunrpc/Kconfig" source "fs/ceph/Kconfig" source "fs/cifs/Kconfig" source "fs/ncpfs/Kconfig" source "fs/coda/Kconfig" source "fs/afs/Kconfig" source "fs/9p/Kconfig" endif # NETWORK_FILESYSTEMS source "fs/nls/Kconfig" source "fs/dlm/Kconfig" endmenu


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