Re: [PATCH 0/5 v5] access to backup-sb and btrfs' multipath aware
Any review comments on this ? pls. Thanks, Anand On 27/03/2013 18:07, Anand Jain wrote: We need a mechanism to tell when to use the backup super_block. To do this it needs a frame-work, and the patch #2 and #3 below provides the same without change in the logic. Its been found and posted to the list that check_mounted needs access to the backup-sb. so patch #3 adds flags parameter to the function btrfs_scan_one_device so that _only_ check_mounted can set the flag to access the backup-sb. patch#4 below is to enable and disable acecss to backup-sb for only certain threads v4->v5: Rebase with integration-20130321 and with my own changes (patch #1) Allow check_mounted thread-path to use backup-sb v3->v4: Fixed some warnings introduced by patch #3 below, sorry my mistake. v2->v3: Accepts David and Eric review, which would result in disabled access to backup-superblock by default. Dropped the patch [PATCH 3/3] btrfs-progs: use BTRFS_SCAN_BACKUP_SB flag in btrfs_scan_one_device Introduced a new patch [PATCH 3/3] btrfs-progs: disable using backup superblock by default v1->v2: Accepts Eric and Zach review. Separates fix into 3 patches for easy logical understanding Anand Jain (5): btrfs-progs: make btrfs dev scan multi path aware btrfs-progs: Introduce flag BTRFS_SCAN_REGISTER to replace run_ioctl btrfs-progs: Introduce flag BTRFS_SCAN_BACKUP_SB for btrfs_read_dev_super btrfs-progs: introduce passing flags to btrfs_scan_one_device btrfs-progs: disable using backup superblock by default cmds-device.c | 57 + cmds-replace.c | 2 +- disk-io.c | 15 ++- disk-io.h | 3 ++- find-root.c| 9 ++--- utils.c| 57 +++-- utils.h| 8 +--- volumes.c | 6 -- volumes.h | 2 +- 9 files changed, 109 insertions(+), 50 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH 0/5 v5] access to backup-sb and btrfs' multipath aware
We need a mechanism to tell when to use the backup super_block. To do this it needs a frame-work, and the patch #2 and #3 below provides the same without change in the logic. Its been found and posted to the list that check_mounted needs access to the backup-sb. so patch #3 adds flags parameter to the function btrfs_scan_one_device so that _only_ check_mounted can set the flag to access the backup-sb. patch#4 below is to enable and disable acecss to backup-sb for only certain threads v4->v5: Rebase with integration-20130321 and with my own changes (patch #1) Allow check_mounted thread-path to use backup-sb v3->v4: Fixed some warnings introduced by patch #3 below, sorry my mistake. v2->v3: Accepts David and Eric review, which would result in disabled access to backup-superblock by default. Dropped the patch [PATCH 3/3] btrfs-progs: use BTRFS_SCAN_BACKUP_SB flag in btrfs_scan_one_device Introduced a new patch [PATCH 3/3] btrfs-progs: disable using backup superblock by default v1->v2: Accepts Eric and Zach review. Separates fix into 3 patches for easy logical understanding Anand Jain (5): btrfs-progs: make btrfs dev scan multi path aware btrfs-progs: Introduce flag BTRFS_SCAN_REGISTER to replace run_ioctl btrfs-progs: Introduce flag BTRFS_SCAN_BACKUP_SB for btrfs_read_dev_super btrfs-progs: introduce passing flags to btrfs_scan_one_device btrfs-progs: disable using backup superblock by default cmds-device.c | 57 + cmds-replace.c | 2 +- disk-io.c | 15 ++- disk-io.h | 3 ++- find-root.c| 9 ++--- utils.c| 57 +++-- utils.h| 8 +--- volumes.c | 6 -- volumes.h | 2 +- 9 files changed, 109 insertions(+), 50 deletions(-) -- 1.8.1.227.g44fe835 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
