From: Andiry Xu <jix024@eng.ucsd.edu> To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org Cc: coughlan@redhat.com, miklos@szeredi.hu, Andiry Xu <jix024@cs.ucsd.edu>, david@fromorbit.com, jack@suse.com, swanson@cs.ucsd.edu, swhiteho@redhat.com, andiry.xu@gmail.com Subject: [RFC v2 80/83] Failure recovery: bitmap operations. Date: Sat, 10 Mar 2018 10:19:01 -0800 [thread overview] Message-ID: <1520705944-6723-81-git-send-email-jix024@eng.ucsd.edu> (raw) In-Reply-To: <1520705944-6723-1-git-send-email-jix024@eng.ucsd.edu> From: Andiry Xu <jix024@cs.ucsd.edu> Upon system failure, NOVA needs to scan all the inode logs to rebuild the allocator. During the scanning, NOVA stores allocated log/data pages in a bitmap, and uses the bitmap to rebuild the allocator once scan finishes. Signed-off-by: Andiry Xu <jix024@cs.ucsd.edu> --- fs/nova/bbuild.c | 252 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/nova/bbuild.h | 18 ++++ 2 files changed, 270 insertions(+) diff --git a/fs/nova/bbuild.c b/fs/nova/bbuild.c index ca51dca..35c661a 100644 --- a/fs/nova/bbuild.c +++ b/fs/nova/bbuild.c @@ -414,6 +414,258 @@ void nova_save_blocknode_mappings_to_log(struct super_block *sb) pi->log_head, pi->log_tail); } +/************************** Bitmap operations ****************************/ + +static inline void set_scan_bm(unsigned long bit, + struct single_scan_bm *scan_bm) +{ + set_bit(bit, scan_bm->bitmap); +} + +inline void set_bm(unsigned long bit, struct scan_bitmap *bm, + enum bm_type type) +{ + switch (type) { + case BM_4K: + set_scan_bm(bit, &bm->scan_bm_4K); + break; + case BM_2M: + set_scan_bm(bit, &bm->scan_bm_2M); + break; + case BM_1G: + set_scan_bm(bit, &bm->scan_bm_1G); + break; + default: + break; + } +} + +static int nova_insert_blocknode_map(struct super_block *sb, + int cpuid, unsigned long low, unsigned long high) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct free_list *free_list; + struct rb_root *tree; + struct nova_range_node *blknode = NULL; + unsigned long num_blocks = 0; + int ret; + + num_blocks = high - low + 1; + nova_dbgv("%s: cpu %d, low %lu, high %lu, num %lu\n", + __func__, cpuid, low, high, num_blocks); + free_list = nova_get_free_list(sb, cpuid); + tree = &(free_list->block_free_tree); + + blknode = nova_alloc_blocknode(sb); + if (blknode == NULL) + return -ENOMEM; + blknode->range_low = low; + blknode->range_high = high; + ret = nova_insert_blocktree(sbi, tree, blknode); + if (ret) { + nova_err(sb, "%s failed\n", __func__); + nova_free_blocknode(sb, blknode); + goto out; + } + if (!free_list->first_node) + free_list->first_node = blknode; + free_list->last_node = blknode; + free_list->num_blocknode++; + free_list->num_free_blocks += num_blocks; +out: + return ret; +} + +static int __nova_build_blocknode_map(struct super_block *sb, + unsigned long *bitmap, unsigned long bsize, unsigned long scale) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct free_list *free_list; + unsigned long next = 0; + unsigned long low = 0; + unsigned long start, end; + int cpuid = 0; + + free_list = nova_get_free_list(sb, cpuid); + start = free_list->block_start; + end = free_list->block_end + 1; + while (1) { + next = find_next_zero_bit(bitmap, end, start); + if (next == bsize) + break; + if (next == end) { + if (cpuid == sbi->cpus - 1) + break; + + cpuid++; + free_list = nova_get_free_list(sb, cpuid); + start = free_list->block_start; + end = free_list->block_end + 1; + continue; + } + + low = next; + next = find_next_bit(bitmap, end, next); + if (nova_insert_blocknode_map(sb, cpuid, + low << scale, (next << scale) - 1)) { + nova_dbg("Error: could not insert %lu - %lu\n", + low << scale, ((next << scale) - 1)); + } + start = next; + if (next == bsize) + break; + if (next == end) { + if (cpuid == sbi->cpus - 1) + break; + + cpuid++; + free_list = nova_get_free_list(sb, cpuid); + start = free_list->block_start; + end = free_list->block_end + 1; + } + } + return 0; +} + +static void nova_update_4K_map(struct super_block *sb, + struct scan_bitmap *bm, unsigned long *bitmap, + unsigned long bsize, unsigned long scale) +{ + unsigned long next = 0; + unsigned long low = 0; + int i; + + while (1) { + next = find_next_bit(bitmap, bsize, next); + if (next == bsize) + break; + low = next; + next = find_next_zero_bit(bitmap, bsize, next); + for (i = (low << scale); i < (next << scale); i++) + set_bm(i, bm, BM_4K); + if (next == bsize) + break; + } +} + +struct scan_bitmap *global_bm[MAX_CPUS]; + +static int nova_build_blocknode_map(struct super_block *sb, + unsigned long initsize) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct scan_bitmap *bm; + struct scan_bitmap *final_bm; + unsigned long *src, *dst; + int i, j; + int num; + int ret; + + final_bm = kzalloc(sizeof(struct scan_bitmap), GFP_KERNEL); + if (!final_bm) + return -ENOMEM; + + final_bm->scan_bm_4K.bitmap_size = + (initsize >> (PAGE_SHIFT + 0x3)); + + /* Alloc memory to hold the block alloc bitmap */ + final_bm->scan_bm_4K.bitmap = kzalloc(final_bm->scan_bm_4K.bitmap_size, + GFP_KERNEL); + + if (!final_bm->scan_bm_4K.bitmap) { + kfree(final_bm); + return -ENOMEM; + } + + /* + * We are using free lists. Set 2M and 1G blocks in 4K map, + * and use 4K map to rebuild block map. + */ + for (i = 0; i < sbi->cpus; i++) { + bm = global_bm[i]; + nova_update_4K_map(sb, bm, bm->scan_bm_2M.bitmap, + bm->scan_bm_2M.bitmap_size * 8, PAGE_SHIFT_2M - 12); + nova_update_4K_map(sb, bm, bm->scan_bm_1G.bitmap, + bm->scan_bm_1G.bitmap_size * 8, PAGE_SHIFT_1G - 12); + } + + /* Merge per-CPU bms to the final single bm */ + num = final_bm->scan_bm_4K.bitmap_size / sizeof(unsigned long); + if (final_bm->scan_bm_4K.bitmap_size % sizeof(unsigned long)) + num++; + + for (i = 0; i < sbi->cpus; i++) { + bm = global_bm[i]; + src = (unsigned long *)bm->scan_bm_4K.bitmap; + dst = (unsigned long *)final_bm->scan_bm_4K.bitmap; + + for (j = 0; j < num; j++) + dst[j] |= src[j]; + } + + ret = __nova_build_blocknode_map(sb, final_bm->scan_bm_4K.bitmap, + final_bm->scan_bm_4K.bitmap_size * 8, PAGE_SHIFT - 12); + + kfree(final_bm->scan_bm_4K.bitmap); + kfree(final_bm); + + return ret; +} + +static void free_bm(struct super_block *sb) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct scan_bitmap *bm; + int i; + + for (i = 0; i < sbi->cpus; i++) { + bm = global_bm[i]; + if (bm) { + kfree(bm->scan_bm_4K.bitmap); + kfree(bm->scan_bm_2M.bitmap); + kfree(bm->scan_bm_1G.bitmap); + kfree(bm); + } + } +} + +static int alloc_bm(struct super_block *sb, unsigned long initsize) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct scan_bitmap *bm; + int i; + + for (i = 0; i < sbi->cpus; i++) { + bm = kzalloc(sizeof(struct scan_bitmap), GFP_KERNEL); + if (!bm) + return -ENOMEM; + + global_bm[i] = bm; + + bm->scan_bm_4K.bitmap_size = + (initsize >> (PAGE_SHIFT + 0x3)); + bm->scan_bm_2M.bitmap_size = + (initsize >> (PAGE_SHIFT_2M + 0x3)); + bm->scan_bm_1G.bitmap_size = + (initsize >> (PAGE_SHIFT_1G + 0x3)); + + /* Alloc memory to hold the block alloc bitmap */ + bm->scan_bm_4K.bitmap = kzalloc(bm->scan_bm_4K.bitmap_size, + GFP_KERNEL); + bm->scan_bm_2M.bitmap = kzalloc(bm->scan_bm_2M.bitmap_size, + GFP_KERNEL); + bm->scan_bm_1G.bitmap = kzalloc(bm->scan_bm_1G.bitmap_size, + GFP_KERNEL); + + if (!bm->scan_bm_4K.bitmap || !bm->scan_bm_2M.bitmap || + !bm->scan_bm_1G.bitmap) + return -ENOMEM; + } + + return 0; +} + + /*********************** Recovery entrance *************************/ /* Return TRUE if we can do a normal unmount recovery */ diff --git a/fs/nova/bbuild.h b/fs/nova/bbuild.h index 2c3deb0..b093e05 100644 --- a/fs/nova/bbuild.h +++ b/fs/nova/bbuild.h @@ -1,6 +1,24 @@ #ifndef __BBUILD_H #define __BBUILD_H +enum bm_type { + BM_4K = 0, + BM_2M, + BM_1G, +}; + +struct single_scan_bm { + unsigned long bitmap_size; + unsigned long *bitmap; +}; + +struct scan_bitmap { + struct single_scan_bm scan_bm_4K; + struct single_scan_bm scan_bm_2M; + struct single_scan_bm scan_bm_1G; +}; + + void nova_init_header(struct super_block *sb, struct nova_inode_info_header *sih, u16 i_mode); void nova_save_inode_list_to_log(struct super_block *sb); -- 2.7.4 _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm
WARNING: multiple messages have this Message-ID (diff)
From: Andiry Xu <jix024@eng.ucsd.edu> To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org Cc: dan.j.williams@intel.com, andy.rudoff@intel.com, coughlan@redhat.com, swanson@cs.ucsd.edu, david@fromorbit.com, jack@suse.com, swhiteho@redhat.com, miklos@szeredi.hu, andiry.xu@gmail.com, Andiry Xu <jix024@cs.ucsd.edu> Subject: [RFC v2 80/83] Failure recovery: bitmap operations. Date: Sat, 10 Mar 2018 10:19:01 -0800 [thread overview] Message-ID: <1520705944-6723-81-git-send-email-jix024@eng.ucsd.edu> (raw) In-Reply-To: <1520705944-6723-1-git-send-email-jix024@eng.ucsd.edu> From: Andiry Xu <jix024@cs.ucsd.edu> Upon system failure, NOVA needs to scan all the inode logs to rebuild the allocator. During the scanning, NOVA stores allocated log/data pages in a bitmap, and uses the bitmap to rebuild the allocator once scan finishes. Signed-off-by: Andiry Xu <jix024@cs.ucsd.edu> --- fs/nova/bbuild.c | 252 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/nova/bbuild.h | 18 ++++ 2 files changed, 270 insertions(+) diff --git a/fs/nova/bbuild.c b/fs/nova/bbuild.c index ca51dca..35c661a 100644 --- a/fs/nova/bbuild.c +++ b/fs/nova/bbuild.c @@ -414,6 +414,258 @@ void nova_save_blocknode_mappings_to_log(struct super_block *sb) pi->log_head, pi->log_tail); } +/************************** Bitmap operations ****************************/ + +static inline void set_scan_bm(unsigned long bit, + struct single_scan_bm *scan_bm) +{ + set_bit(bit, scan_bm->bitmap); +} + +inline void set_bm(unsigned long bit, struct scan_bitmap *bm, + enum bm_type type) +{ + switch (type) { + case BM_4K: + set_scan_bm(bit, &bm->scan_bm_4K); + break; + case BM_2M: + set_scan_bm(bit, &bm->scan_bm_2M); + break; + case BM_1G: + set_scan_bm(bit, &bm->scan_bm_1G); + break; + default: + break; + } +} + +static int nova_insert_blocknode_map(struct super_block *sb, + int cpuid, unsigned long low, unsigned long high) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct free_list *free_list; + struct rb_root *tree; + struct nova_range_node *blknode = NULL; + unsigned long num_blocks = 0; + int ret; + + num_blocks = high - low + 1; + nova_dbgv("%s: cpu %d, low %lu, high %lu, num %lu\n", + __func__, cpuid, low, high, num_blocks); + free_list = nova_get_free_list(sb, cpuid); + tree = &(free_list->block_free_tree); + + blknode = nova_alloc_blocknode(sb); + if (blknode == NULL) + return -ENOMEM; + blknode->range_low = low; + blknode->range_high = high; + ret = nova_insert_blocktree(sbi, tree, blknode); + if (ret) { + nova_err(sb, "%s failed\n", __func__); + nova_free_blocknode(sb, blknode); + goto out; + } + if (!free_list->first_node) + free_list->first_node = blknode; + free_list->last_node = blknode; + free_list->num_blocknode++; + free_list->num_free_blocks += num_blocks; +out: + return ret; +} + +static int __nova_build_blocknode_map(struct super_block *sb, + unsigned long *bitmap, unsigned long bsize, unsigned long scale) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct free_list *free_list; + unsigned long next = 0; + unsigned long low = 0; + unsigned long start, end; + int cpuid = 0; + + free_list = nova_get_free_list(sb, cpuid); + start = free_list->block_start; + end = free_list->block_end + 1; + while (1) { + next = find_next_zero_bit(bitmap, end, start); + if (next == bsize) + break; + if (next == end) { + if (cpuid == sbi->cpus - 1) + break; + + cpuid++; + free_list = nova_get_free_list(sb, cpuid); + start = free_list->block_start; + end = free_list->block_end + 1; + continue; + } + + low = next; + next = find_next_bit(bitmap, end, next); + if (nova_insert_blocknode_map(sb, cpuid, + low << scale, (next << scale) - 1)) { + nova_dbg("Error: could not insert %lu - %lu\n", + low << scale, ((next << scale) - 1)); + } + start = next; + if (next == bsize) + break; + if (next == end) { + if (cpuid == sbi->cpus - 1) + break; + + cpuid++; + free_list = nova_get_free_list(sb, cpuid); + start = free_list->block_start; + end = free_list->block_end + 1; + } + } + return 0; +} + +static void nova_update_4K_map(struct super_block *sb, + struct scan_bitmap *bm, unsigned long *bitmap, + unsigned long bsize, unsigned long scale) +{ + unsigned long next = 0; + unsigned long low = 0; + int i; + + while (1) { + next = find_next_bit(bitmap, bsize, next); + if (next == bsize) + break; + low = next; + next = find_next_zero_bit(bitmap, bsize, next); + for (i = (low << scale); i < (next << scale); i++) + set_bm(i, bm, BM_4K); + if (next == bsize) + break; + } +} + +struct scan_bitmap *global_bm[MAX_CPUS]; + +static int nova_build_blocknode_map(struct super_block *sb, + unsigned long initsize) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct scan_bitmap *bm; + struct scan_bitmap *final_bm; + unsigned long *src, *dst; + int i, j; + int num; + int ret; + + final_bm = kzalloc(sizeof(struct scan_bitmap), GFP_KERNEL); + if (!final_bm) + return -ENOMEM; + + final_bm->scan_bm_4K.bitmap_size = + (initsize >> (PAGE_SHIFT + 0x3)); + + /* Alloc memory to hold the block alloc bitmap */ + final_bm->scan_bm_4K.bitmap = kzalloc(final_bm->scan_bm_4K.bitmap_size, + GFP_KERNEL); + + if (!final_bm->scan_bm_4K.bitmap) { + kfree(final_bm); + return -ENOMEM; + } + + /* + * We are using free lists. Set 2M and 1G blocks in 4K map, + * and use 4K map to rebuild block map. + */ + for (i = 0; i < sbi->cpus; i++) { + bm = global_bm[i]; + nova_update_4K_map(sb, bm, bm->scan_bm_2M.bitmap, + bm->scan_bm_2M.bitmap_size * 8, PAGE_SHIFT_2M - 12); + nova_update_4K_map(sb, bm, bm->scan_bm_1G.bitmap, + bm->scan_bm_1G.bitmap_size * 8, PAGE_SHIFT_1G - 12); + } + + /* Merge per-CPU bms to the final single bm */ + num = final_bm->scan_bm_4K.bitmap_size / sizeof(unsigned long); + if (final_bm->scan_bm_4K.bitmap_size % sizeof(unsigned long)) + num++; + + for (i = 0; i < sbi->cpus; i++) { + bm = global_bm[i]; + src = (unsigned long *)bm->scan_bm_4K.bitmap; + dst = (unsigned long *)final_bm->scan_bm_4K.bitmap; + + for (j = 0; j < num; j++) + dst[j] |= src[j]; + } + + ret = __nova_build_blocknode_map(sb, final_bm->scan_bm_4K.bitmap, + final_bm->scan_bm_4K.bitmap_size * 8, PAGE_SHIFT - 12); + + kfree(final_bm->scan_bm_4K.bitmap); + kfree(final_bm); + + return ret; +} + +static void free_bm(struct super_block *sb) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct scan_bitmap *bm; + int i; + + for (i = 0; i < sbi->cpus; i++) { + bm = global_bm[i]; + if (bm) { + kfree(bm->scan_bm_4K.bitmap); + kfree(bm->scan_bm_2M.bitmap); + kfree(bm->scan_bm_1G.bitmap); + kfree(bm); + } + } +} + +static int alloc_bm(struct super_block *sb, unsigned long initsize) +{ + struct nova_sb_info *sbi = NOVA_SB(sb); + struct scan_bitmap *bm; + int i; + + for (i = 0; i < sbi->cpus; i++) { + bm = kzalloc(sizeof(struct scan_bitmap), GFP_KERNEL); + if (!bm) + return -ENOMEM; + + global_bm[i] = bm; + + bm->scan_bm_4K.bitmap_size = + (initsize >> (PAGE_SHIFT + 0x3)); + bm->scan_bm_2M.bitmap_size = + (initsize >> (PAGE_SHIFT_2M + 0x3)); + bm->scan_bm_1G.bitmap_size = + (initsize >> (PAGE_SHIFT_1G + 0x3)); + + /* Alloc memory to hold the block alloc bitmap */ + bm->scan_bm_4K.bitmap = kzalloc(bm->scan_bm_4K.bitmap_size, + GFP_KERNEL); + bm->scan_bm_2M.bitmap = kzalloc(bm->scan_bm_2M.bitmap_size, + GFP_KERNEL); + bm->scan_bm_1G.bitmap = kzalloc(bm->scan_bm_1G.bitmap_size, + GFP_KERNEL); + + if (!bm->scan_bm_4K.bitmap || !bm->scan_bm_2M.bitmap || + !bm->scan_bm_1G.bitmap) + return -ENOMEM; + } + + return 0; +} + + /*********************** Recovery entrance *************************/ /* Return TRUE if we can do a normal unmount recovery */ diff --git a/fs/nova/bbuild.h b/fs/nova/bbuild.h index 2c3deb0..b093e05 100644 --- a/fs/nova/bbuild.h +++ b/fs/nova/bbuild.h @@ -1,6 +1,24 @@ #ifndef __BBUILD_H #define __BBUILD_H +enum bm_type { + BM_4K = 0, + BM_2M, + BM_1G, +}; + +struct single_scan_bm { + unsigned long bitmap_size; + unsigned long *bitmap; +}; + +struct scan_bitmap { + struct single_scan_bm scan_bm_4K; + struct single_scan_bm scan_bm_2M; + struct single_scan_bm scan_bm_1G; +}; + + void nova_init_header(struct super_block *sb, struct nova_inode_info_header *sih, u16 i_mode); void nova_save_inode_list_to_log(struct super_block *sb); -- 2.7.4
next prev parent reply other threads:[~2018-03-10 18:15 UTC|newest] Thread overview: 236+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-03-10 18:17 [RFC v2 00/83] NOVA: a new file system for persistent memory Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 01/83] Introduction and documentation of NOVA filesystem Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-19 20:43 ` Randy Dunlap 2018-03-19 20:43 ` Randy Dunlap 2018-03-19 23:00 ` Andiry Xu 2018-03-19 23:00 ` Andiry Xu 2018-04-22 8:05 ` Pavel Machek 2018-03-10 18:17 ` [RFC v2 02/83] Add nova_def.h Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 03/83] Add super.h Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-15 4:54 ` Darrick J. Wong 2018-03-15 4:54 ` Darrick J. Wong 2018-03-15 6:11 ` Andiry Xu 2018-03-15 6:11 ` Andiry Xu 2018-03-15 9:05 ` Arnd Bergmann 2018-03-15 9:05 ` Arnd Bergmann 2018-03-15 17:51 ` Andiry Xu 2018-03-15 17:51 ` Andiry Xu 2018-03-15 20:04 ` Andreas Dilger 2018-03-15 20:38 ` Arnd Bergmann 2018-03-15 20:38 ` Arnd Bergmann 2018-03-16 2:59 ` Theodore Y. Ts'o 2018-03-16 2:59 ` Theodore Y. Ts'o 2018-03-16 6:17 ` Andiry Xu 2018-03-16 6:17 ` Andiry Xu 2018-03-16 6:30 ` Darrick J. Wong 2018-03-16 6:30 ` Darrick J. Wong 2018-03-16 9:19 ` Arnd Bergmann 2018-03-16 9:19 ` Arnd Bergmann 2018-03-10 18:17 ` [RFC v2 04/83] NOVA inode definition Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-15 5:06 ` Darrick J. Wong 2018-03-15 5:06 ` Darrick J. Wong 2018-03-15 6:16 ` Andiry Xu 2018-03-15 6:16 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 05/83] Add NOVA filesystem definitions and useful helper routines Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-11 12:00 ` Nikolay Borisov 2018-03-11 12:00 ` Nikolay Borisov 2018-03-11 19:22 ` Eric Biggers 2018-03-11 19:22 ` Eric Biggers 2018-03-11 21:45 ` Andiry Xu 2018-03-11 21:45 ` Andiry Xu 2018-03-19 19:39 ` Andiry Xu 2018-03-19 19:39 ` Andiry Xu 2018-03-19 20:30 ` Eric Biggers 2018-03-19 20:30 ` Eric Biggers 2018-03-19 21:59 ` Andiry Xu 2018-03-19 21:59 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 06/83] Add inode get/read methods Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-04-23 6:12 ` Darrick J. Wong 2018-04-23 6:12 ` Darrick J. Wong 2018-04-23 15:55 ` Andiry Xu 2018-04-23 15:55 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 07/83] Initialize inode_info and rebuild inode information in nova_iget() Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 08/83] NOVA superblock operations Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 09/83] Add Kconfig and Makefile Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-11 12:15 ` Nikolay Borisov 2018-03-11 12:15 ` Nikolay Borisov 2018-03-11 21:32 ` Andiry Xu 2018-03-11 21:32 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 10/83] Add superblock integrity check Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 11/83] Add timing and I/O statistics for performance analysis and profiling Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 12/83] Add timing for mount and init Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 13/83] Add remount_fs and show_options methods Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 14/83] Add range node kmem cache Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-11 11:55 ` Nikolay Borisov 2018-03-11 11:55 ` Nikolay Borisov 2018-03-11 21:31 ` Andiry Xu 2018-03-11 21:31 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 15/83] Add free list data structure Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 16/83] Initialize block map and free lists in nova_init() Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-11 12:12 ` Nikolay Borisov 2018-03-11 12:12 ` Nikolay Borisov 2018-03-11 21:30 ` Andiry Xu 2018-03-11 21:30 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 17/83] Add statfs support Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:17 ` [RFC v2 18/83] Add freelist statistics printing Andiry Xu 2018-03-10 18:17 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 19/83] Add pmem block free routines Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 20/83] Pmem block allocation routines Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 21/83] Add log structure Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 22/83] Inode log pages allocation and reclaimation Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 23/83] Save allocator to pmem in put_super Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 24/83] Initialize and allocate inode table Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 25/83] Support get normal inode address and inode table extentsion Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 26/83] Add inode_map to track inuse inodes Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 27/83] Save the inode inuse list to pmem upon umount Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 28/83] Add NOVA address space operations Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 29/83] Add write_inode and dirty_inode routines Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 30/83] New NOVA inode allocation Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 31/83] Add new vfs " Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 32/83] Add log entry definitions Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 33/83] Inode log and entry printing for debug purpose Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 34/83] Journal: NOVA light weight journal definitions Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 35/83] Journal: Lite journal helper routines Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 36/83] Journal: Lite journal recovery Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 37/83] Journal: Lite journal create and commit Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 38/83] Journal: NOVA lite journal initialization Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 39/83] Log operation: dentry append Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 40/83] Log operation: file write entry append Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 41/83] Log operation: setattr " Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 42/83] Log operation: link change append Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 43/83] Log operation: in-place update log entry Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 44/83] Log operation: invalidate log entries Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 45/83] Log operation: file inode log lookup and assign Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 46/83] Dir: Add Directory radix tree insert/remove methods Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 47/83] Dir: Add initial dentries when initializing a directory inode log Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 48/83] Dir: Readdir operation Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 49/83] Dir: Append create/remove dentry Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 50/83] Inode: Add nova_evict_inode Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 51/83] Rebuild: directory inode Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 52/83] Rebuild: file inode Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 53/83] Namei: lookup Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 54/83] Namei: create and mknod Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 55/83] Namei: mkdir Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 56/83] Namei: link and unlink Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 57/83] Namei: rmdir Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 58/83] Namei: rename Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 59/83] Namei: setattr Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 60/83] Add special inode operations Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 61/83] Super: Add nova_export_ops Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 62/83] File: getattr and file inode operations Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 63/83] File operation: llseek Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 64/83] File operation: open, fsync, flush Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 65/83] File operation: read Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 66/83] Super: Add file write item cache Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 67/83] Dax: commit list of file write items to log Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 68/83] File operation: copy-on-write write Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 69/83] Super: Add module param inplace_data_updates Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 70/83] File operation: Inplace write Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 71/83] Symlink support Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 72/83] File operation: fallocate Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 73/83] Dax: Add iomap operations Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 74/83] File operation: Mmap Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 75/83] File operation: read/write iter Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 76/83] Ioctl support Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 77/83] GC: Fast garbage collection Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:18 ` [RFC v2 78/83] GC: Thorough " Andiry Xu 2018-03-10 18:18 ` Andiry Xu 2018-03-10 18:19 ` [RFC v2 79/83] Normal recovery Andiry Xu 2018-03-10 18:19 ` Andiry Xu 2018-03-10 18:19 ` Andiry Xu [this message] 2018-03-10 18:19 ` [RFC v2 80/83] Failure recovery: bitmap operations Andiry Xu 2018-03-10 18:19 ` [RFC v2 81/83] Failure recovery: Inode pages recovery routines Andiry Xu 2018-03-10 18:19 ` Andiry Xu 2018-03-10 18:19 ` [RFC v2 82/83] Failure recovery: Per-CPU recovery Andiry Xu 2018-03-10 18:19 ` Andiry Xu 2018-03-10 18:19 ` [RFC v2 83/83] Sysfs support Andiry Xu 2018-03-10 18:19 ` Andiry Xu 2018-03-15 0:33 ` Randy Dunlap 2018-03-15 0:33 ` Randy Dunlap 2018-03-15 6:07 ` Andiry Xu 2018-03-15 6:07 ` Andiry Xu 2018-03-22 15:00 ` David Sterba 2018-03-22 15:00 ` David Sterba 2018-03-23 0:31 ` Andiry Xu 2018-03-23 0:31 ` Andiry Xu 2018-03-11 2:14 ` [RFC v2 00/83] NOVA: a new file system for persistent memory Theodore Y. Ts'o 2018-03-11 2:14 ` Theodore Y. Ts'o 2018-03-11 4:58 ` Andiry Xu 2018-03-11 4:58 ` Andiry Xu
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