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-rw-r--r--fs/nilfs2/bmap.c47
-rw-r--r--fs/nilfs2/btnode.c3
-rw-r--r--fs/nilfs2/dat.c2
-rw-r--r--fs/nilfs2/dir.c3
-rw-r--r--fs/nilfs2/file.c1
-rw-r--r--fs/nilfs2/gcinode.c9
-rw-r--r--fs/nilfs2/ifile.c11
-rw-r--r--fs/nilfs2/inode.c190
-rw-r--r--fs/nilfs2/ioctl.c28
-rw-r--r--fs/nilfs2/mdt.c32
-rw-r--r--fs/nilfs2/namei.c1
-rw-r--r--fs/nilfs2/nilfs.h15
-rw-r--r--fs/nilfs2/page.c86
-rw-r--r--fs/nilfs2/page.h3
-rw-r--r--fs/nilfs2/recovery.c2
-rw-r--r--fs/nilfs2/sb.h8
-rw-r--r--fs/nilfs2/segment.c43
-rw-r--r--fs/nilfs2/super.c42
-rw-r--r--fs/nilfs2/the_nilfs.c6
-rw-r--r--fs/nilfs2/the_nilfs.h3
20 files changed, 369 insertions, 166 deletions
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index 8b782b062baa..3ee67c67cc52 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -35,7 +35,20 @@
struct inode *nilfs_bmap_get_dat(const struct nilfs_bmap *bmap)
{
- return nilfs_dat_inode(NILFS_I_NILFS(bmap->b_inode));
+ return NILFS_I_NILFS(bmap->b_inode)->ns_dat;
+}
+
+static int nilfs_bmap_convert_error(struct nilfs_bmap *bmap,
+ const char *fname, int err)
+{
+ struct inode *inode = bmap->b_inode;
+
+ if (err == -EINVAL) {
+ nilfs_error(inode->i_sb, fname,
+ "broken bmap (inode number=%lu)\n", inode->i_ino);
+ err = -EIO;
+ }
+ return err;
}
/**
@@ -66,8 +79,10 @@ int nilfs_bmap_lookup_at_level(struct nilfs_bmap *bmap, __u64 key, int level,
down_read(&bmap->b_sem);
ret = bmap->b_ops->bop_lookup(bmap, key, level, ptrp);
- if (ret < 0)
+ if (ret < 0) {
+ ret = nilfs_bmap_convert_error(bmap, __func__, ret);
goto out;
+ }
if (NILFS_BMAP_USE_VBN(bmap)) {
ret = nilfs_dat_translate(nilfs_bmap_get_dat(bmap), *ptrp,
&blocknr);
@@ -88,7 +103,8 @@ int nilfs_bmap_lookup_contig(struct nilfs_bmap *bmap, __u64 key, __u64 *ptrp,
down_read(&bmap->b_sem);
ret = bmap->b_ops->bop_lookup_contig(bmap, key, ptrp, maxblocks);
up_read(&bmap->b_sem);
- return ret;
+
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
static int nilfs_bmap_do_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
@@ -144,7 +160,8 @@ int nilfs_bmap_insert(struct nilfs_bmap *bmap,
down_write(&bmap->b_sem);
ret = nilfs_bmap_do_insert(bmap, key, rec);
up_write(&bmap->b_sem);
- return ret;
+
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
static int nilfs_bmap_do_delete(struct nilfs_bmap *bmap, __u64 key)
@@ -180,9 +197,12 @@ int nilfs_bmap_last_key(struct nilfs_bmap *bmap, unsigned long *key)
down_read(&bmap->b_sem);
ret = bmap->b_ops->bop_last_key(bmap, &lastkey);
- if (!ret)
- *key = lastkey;
up_read(&bmap->b_sem);
+
+ if (ret < 0)
+ ret = nilfs_bmap_convert_error(bmap, __func__, ret);
+ else
+ *key = lastkey;
return ret;
}
@@ -210,7 +230,8 @@ int nilfs_bmap_delete(struct nilfs_bmap *bmap, unsigned long key)
down_write(&bmap->b_sem);
ret = nilfs_bmap_do_delete(bmap, key);
up_write(&bmap->b_sem);
- return ret;
+
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
static int nilfs_bmap_do_truncate(struct nilfs_bmap *bmap, unsigned long key)
@@ -261,7 +282,8 @@ int nilfs_bmap_truncate(struct nilfs_bmap *bmap, unsigned long key)
down_write(&bmap->b_sem);
ret = nilfs_bmap_do_truncate(bmap, key);
up_write(&bmap->b_sem);
- return ret;
+
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
/**
@@ -300,7 +322,8 @@ int nilfs_bmap_propagate(struct nilfs_bmap *bmap, struct buffer_head *bh)
down_write(&bmap->b_sem);
ret = bmap->b_ops->bop_propagate(bmap, bh);
up_write(&bmap->b_sem);
- return ret;
+
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
/**
@@ -344,7 +367,8 @@ int nilfs_bmap_assign(struct nilfs_bmap *bmap,
down_write(&bmap->b_sem);
ret = bmap->b_ops->bop_assign(bmap, bh, blocknr, binfo);
up_write(&bmap->b_sem);
- return ret;
+
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
/**
@@ -373,7 +397,8 @@ int nilfs_bmap_mark(struct nilfs_bmap *bmap, __u64 key, int level)
down_write(&bmap->b_sem);
ret = bmap->b_ops->bop_mark(bmap, key, level);
up_write(&bmap->b_sem);
- return ret;
+
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
/**
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index 5115814cb745..388e9e8f5286 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -104,8 +104,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
if (pblocknr == 0) {
pblocknr = blocknr;
if (inode->i_ino != NILFS_DAT_INO) {
- struct inode *dat =
- nilfs_dat_inode(NILFS_I_NILFS(inode));
+ struct inode *dat = NILFS_I_NILFS(inode)->ns_dat;
/* blocknr is a virtual block number */
err = nilfs_dat_translate(dat, blocknr, &pblocknr);
diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c
index 49c844dab33a..59e5fe742f7b 100644
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -335,7 +335,7 @@ int nilfs_dat_move(struct inode *dat, __u64 vblocknr, sector_t blocknr)
* the device at this point.
*
* To prevent nilfs_dat_translate() from returning the
- * uncommited block number, this makes a copy of the entry
+ * uncommitted block number, this makes a copy of the entry
* buffer and redirects nilfs_dat_translate() to the copy.
*/
if (!buffer_nilfs_redirected(entry_bh)) {
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index cb003c8ee1f6..9d45773b79e6 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -91,7 +91,6 @@ static void nilfs_commit_chunk(struct page *page,
unsigned from, unsigned to)
{
struct inode *dir = mapping->host;
- struct nilfs_sb_info *sbi = NILFS_SB(dir->i_sb);
loff_t pos = page_offset(page) + from;
unsigned len = to - from;
unsigned nr_dirty, copied;
@@ -103,7 +102,7 @@ static void nilfs_commit_chunk(struct page *page,
i_size_write(dir, pos + copied);
if (IS_DIRSYNC(dir))
nilfs_set_transaction_flag(NILFS_TI_SYNC);
- err = nilfs_set_file_dirty(sbi, dir, nr_dirty);
+ err = nilfs_set_file_dirty(dir, nr_dirty);
WARN_ON(err); /* do not happen */
unlock_page(page);
}
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c
index c9a30d7ff6fc..2f560c9fb808 100644
--- a/fs/nilfs2/file.c
+++ b/fs/nilfs2/file.c
@@ -155,6 +155,7 @@ const struct inode_operations nilfs_file_inode_operations = {
.truncate = nilfs_truncate,
.setattr = nilfs_setattr,
.permission = nilfs_permission,
+ .fiemap = nilfs_fiemap,
};
/* end of file */
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 33ad25ddd5c4..caf9a6a3fb54 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -176,7 +176,6 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *bh)
int nilfs_init_gcinode(struct inode *inode)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
- struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
inode->i_mode = S_IFREG;
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
@@ -186,14 +185,6 @@ int nilfs_init_gcinode(struct inode *inode)
ii->i_flags = 0;
nilfs_bmap_init_gc(ii->i_bmap);
- /*
- * Add the inode to GC inode list. Garbage Collection
- * is serialized and no two processes manipulate the
- * list simultaneously.
- */
- igrab(inode);
- list_add(&NILFS_I(inode)->i_dirty, &nilfs->ns_gc_inodes);
-
return 0;
}
diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c
index 9f8a2da67f90..bfc73d3a30ed 100644
--- a/fs/nilfs2/ifile.c
+++ b/fs/nilfs2/ifile.c
@@ -149,14 +149,9 @@ int nilfs_ifile_get_inode_block(struct inode *ifile, ino_t ino,
}
err = nilfs_palloc_get_entry_block(ifile, ino, 0, out_bh);
- if (unlikely(err)) {
- if (err == -EINVAL)
- nilfs_error(sb, __func__, "ifile is broken");
- else
- nilfs_warning(sb, __func__,
- "unable to read inode: %lu",
- (unsigned long) ino);
- }
+ if (unlikely(err))
+ nilfs_warning(sb, __func__, "unable to read inode: %lu",
+ (unsigned long) ino);
return err;
}
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 71d4bc8464e0..2fd440d8d6b8 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -58,7 +58,7 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
struct nilfs_inode_info *ii = NILFS_I(inode);
__u64 blknum = 0;
int err = 0, ret;
- struct inode *dat = nilfs_dat_inode(NILFS_I_NILFS(inode));
+ struct inode *dat = NILFS_I_NILFS(inode)->ns_dat;
unsigned maxblocks = bh_result->b_size >> inode->i_blkbits;
down_read(&NILFS_MDT(dat)->mi_sem);
@@ -96,11 +96,6 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
inode->i_ino,
(unsigned long long)blkoff);
err = 0;
- } else if (err == -EINVAL) {
- nilfs_error(inode->i_sb, __func__,
- "broken bmap (inode=%lu)\n",
- inode->i_ino);
- err = -EIO;
}
nilfs_transaction_abort(inode->i_sb);
goto out;
@@ -109,6 +104,7 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
nilfs_transaction_commit(inode->i_sb); /* never fails */
/* Error handling should be detailed */
set_buffer_new(bh_result);
+ set_buffer_delay(bh_result);
map_bh(bh_result, inode->i_sb, 0); /* dbn must be changed
to proper value */
} else if (ret == -ENOENT) {
@@ -185,10 +181,9 @@ static int nilfs_set_page_dirty(struct page *page)
if (ret) {
struct inode *inode = page->mapping->host;
- struct nilfs_sb_info *sbi = NILFS_SB(inode->i_sb);
unsigned nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
- nilfs_set_file_dirty(sbi, inode, nr_dirty);
+ nilfs_set_file_dirty(inode, nr_dirty);
}
return ret;
}
@@ -229,7 +224,7 @@ static int nilfs_write_end(struct file *file, struct address_space *mapping,
start + copied);
copied = generic_write_end(file, mapping, pos, len, copied, page,
fsdata);
- nilfs_set_file_dirty(NILFS_SB(inode->i_sb), inode, nr_dirty);
+ nilfs_set_file_dirty(inode, nr_dirty);
err = nilfs_transaction_commit(inode->i_sb);
return err ? : copied;
}
@@ -425,13 +420,12 @@ static int __nilfs_read_inode(struct super_block *sb,
struct nilfs_root *root, unsigned long ino,
struct inode *inode)
{
- struct nilfs_sb_info *sbi = NILFS_SB(sb);
- struct inode *dat = nilfs_dat_inode(sbi->s_nilfs);
+ struct the_nilfs *nilfs = NILFS_SB(sb)->s_nilfs;
struct buffer_head *bh;
struct nilfs_inode *raw_inode;
int err;
- down_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
+ down_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
err = nilfs_ifile_get_inode_block(root->ifile, ino, &bh);
if (unlikely(err))
goto bad_inode;
@@ -461,7 +455,7 @@ static int __nilfs_read_inode(struct super_block *sb,
}
nilfs_ifile_unmap_inode(root->ifile, ino, bh);
brelse(bh);
- up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
+ up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
nilfs_set_inode_flags(inode);
return 0;
@@ -470,7 +464,7 @@ static int __nilfs_read_inode(struct super_block *sb,
brelse(bh);
bad_inode:
- up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
+ up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
return err;
}
@@ -629,7 +623,7 @@ static void nilfs_truncate_bmap(struct nilfs_inode_info *ii,
if (!test_bit(NILFS_I_BMAP, &ii->i_state))
return;
- repeat:
+repeat:
ret = nilfs_bmap_last_key(ii->i_bmap, &b);
if (ret == -ENOENT)
return;
@@ -646,14 +640,10 @@ static void nilfs_truncate_bmap(struct nilfs_inode_info *ii,
nilfs_bmap_truncate(ii->i_bmap, b) == 0))
goto repeat;
- failed:
- if (ret == -EINVAL)
- nilfs_error(ii->vfs_inode.i_sb, __func__,
- "bmap is broken (ino=%lu)", ii->vfs_inode.i_ino);
- else
- nilfs_warning(ii->vfs_inode.i_sb, __func__,
- "failed to truncate bmap (ino=%lu, err=%d)",
- ii->vfs_inode.i_ino, ret);
+failed:
+ nilfs_warning(ii->vfs_inode.i_sb, __func__,
+ "failed to truncate bmap (ino=%lu, err=%d)",
+ ii->vfs_inode.i_ino, ret);
}
void nilfs_truncate(struct inode *inode)
@@ -682,7 +672,7 @@ void nilfs_truncate(struct inode *inode)
nilfs_set_transaction_flag(NILFS_TI_SYNC);
nilfs_mark_inode_dirty(inode);
- nilfs_set_file_dirty(NILFS_SB(sb), inode, 0);
+ nilfs_set_file_dirty(inode, 0);
nilfs_transaction_commit(sb);
/* May construct a logical segment and may fail in sync mode.
But truncate has no return value. */
@@ -785,20 +775,24 @@ out_err:
return err;
}
-int nilfs_permission(struct inode *inode, int mask)
+int nilfs_permission(struct inode *inode, int mask, unsigned int flags)
{
- struct nilfs_root *root = NILFS_I(inode)->i_root;
+ struct nilfs_root *root;
+ if (flags & IPERM_FLAG_RCU)
+ return -ECHILD;
+
+ root = NILFS_I(inode)->i_root;
if ((mask & MAY_WRITE) && root &&
root->cno != NILFS_CPTREE_CURRENT_CNO)
return -EROFS; /* snapshot is not writable */
- return generic_permission(inode, mask, NULL);
+ return generic_permission(inode, mask, flags, NULL);
}
-int nilfs_load_inode_block(struct nilfs_sb_info *sbi, struct inode *inode,
- struct buffer_head **pbh)
+int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh)
{
+ struct nilfs_sb_info *sbi = NILFS_SB(inode->i_sb);
struct nilfs_inode_info *ii = NILFS_I(inode);
int err;
@@ -839,9 +833,9 @@ int nilfs_inode_dirty(struct inode *inode)
return ret;
}
-int nilfs_set_file_dirty(struct nilfs_sb_info *sbi, struct inode *inode,
- unsigned nr_dirty)
+int nilfs_set_file_dirty(struct inode *inode, unsigned nr_dirty)
{
+ struct nilfs_sb_info *sbi = NILFS_SB(inode->i_sb);
struct nilfs_inode_info *ii = NILFS_I(inode);
atomic_add(nr_dirty, &sbi->s_nilfs->ns_ndirtyblks);
@@ -874,11 +868,10 @@ int nilfs_set_file_dirty(struct nilfs_sb_info *sbi, struct inode *inode,
int nilfs_mark_inode_dirty(struct inode *inode)
{
- struct nilfs_sb_info *sbi = NILFS_SB(inode->i_sb);
struct buffer_head *ibh;
int err;
- err = nilfs_load_inode_block(sbi, inode, &ibh);
+ err = nilfs_load_inode_block(inode, &ibh);
if (unlikely(err)) {
nilfs_warning(inode->i_sb, __func__,
"failed to reget inode block.\n");
@@ -920,3 +913,134 @@ void nilfs_dirty_inode(struct inode *inode)
nilfs_mark_inode_dirty(inode);
nilfs_transaction_commit(inode->i_sb); /* never fails */
}
+
+int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ __u64 start, __u64 len)
+{
+ struct the_nilfs *nilfs = NILFS_I_NILFS(inode);
+ __u64 logical = 0, phys = 0, size = 0;
+ __u32 flags = 0;
+ loff_t isize;
+ sector_t blkoff, end_blkoff;
+ sector_t delalloc_blkoff;
+ unsigned long delalloc_blklen;
+ unsigned int blkbits = inode->i_blkbits;
+ int ret, n;
+
+ ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
+ if (ret)
+ return ret;
+
+ mutex_lock(&inode->i_mutex);
+
+ isize = i_size_read(inode);
+
+ blkoff = start >> blkbits;
+ end_blkoff = (start + len - 1) >> blkbits;
+
+ delalloc_blklen = nilfs_find_uncommitted_extent(inode, blkoff,
+ &delalloc_blkoff);
+
+ do {
+ __u64 blkphy;
+ unsigned int maxblocks;
+
+ if (delalloc_blklen && blkoff == delalloc_blkoff) {
+ if (size) {
+ /* End of the current extent */
+ ret = fiemap_fill_next_extent(
+ fieinfo, logical, phys, size, flags);
+ if (ret)
+ break;
+ }
+ if (blkoff > end_blkoff)
+ break;
+
+ flags = FIEMAP_EXTENT_MERGED | FIEMAP_EXTENT_DELALLOC;
+ logical = blkoff << blkbits;
+ phys = 0;
+ size = delalloc_blklen << blkbits;
+
+ blkoff = delalloc_blkoff + delalloc_blklen;
+ delalloc_blklen = nilfs_find_uncommitted_extent(
+ inode, blkoff, &delalloc_blkoff);
+ continue;
+ }
+
+ /*
+ * Limit the number of blocks that we look up so as
+ * not to get into the next delayed allocation extent.
+ */
+ maxblocks = INT_MAX;
+ if (delalloc_blklen)
+ maxblocks = min_t(sector_t, delalloc_blkoff - blkoff,
+ maxblocks);
+ blkphy = 0;
+
+ down_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
+ n = nilfs_bmap_lookup_contig(
+ NILFS_I(inode)->i_bmap, blkoff, &blkphy, maxblocks);
+ up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
+
+ if (n < 0) {
+ int past_eof;
+
+ if (unlikely(n != -ENOENT))
+ break; /* error */
+
+ /* HOLE */
+ blkoff++;
+ past_eof = ((blkoff << blkbits) >= isize);
+
+ if (size) {
+ /* End of the current extent */
+
+ if (past_eof)
+ flags |= FIEMAP_EXTENT_LAST;
+
+ ret = fiemap_fill_next_extent(
+ fieinfo, logical, phys, size, flags);
+ if (ret)
+ break;
+ size = 0;
+ }
+ if (blkoff > end_blkoff || past_eof)
+ break;
+ } else {
+ if (size) {
+ if (phys && blkphy << blkbits == phys + size) {
+ /* The current extent goes on */
+ size += n << blkbits;
+ } else {
+ /* Terminate the current extent */
+ ret = fiemap_fill_next_extent(
+ fieinfo, logical, phys, size,
+ flags);
+ if (ret || blkoff > end_blkoff)
+ break;
+
+ /* Start another extent */
+ flags = FIEMAP_EXTENT_MERGED;
+ logical = blkoff << blkbits;
+ phys = blkphy << blkbits;
+ size = n << blkbits;
+ }
+ } else {
+ /* Start a new extent */
+ flags = FIEMAP_EXTENT_MERGED;
+ logical = blkoff << blkbits;
+ phys = blkphy << blkbits;
+ size = n << blkbits;
+ }
+ blkoff += n;
+ }
+ cond_resched();
+ } while (true);
+
+ /* If ret is 1 then we just hit the end of the extent array */
+ if (ret == 1)
+ ret = 0;
+
+ mutex_unlock(&inode->i_mutex);
+ return ret;
+}
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 3e90f86d5bfe..496738963fdb 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -233,7 +233,7 @@ nilfs_ioctl_do_get_vinfo(struct the_nilfs *nilfs, __u64 *posp, int flags,
int ret;
down_read(&nilfs->ns_segctor_sem);
- ret = nilfs_dat_get_vinfo(nilfs_dat_inode(nilfs), buf, size, nmembs);
+ ret = nilfs_dat_get_vinfo(nilfs->ns_dat, buf, size, nmembs);
up_read(&nilfs->ns_segctor_sem);
return ret;
}
@@ -242,8 +242,7 @@ static ssize_t
nilfs_ioctl_do_get_bdescs(struct the_nilfs *nilfs, __u64 *posp, int flags,
void *buf, size_t size, size_t nmembs)
{
- struct inode *dat = nilfs_dat_inode(nilfs);
- struct nilfs_bmap *bmap = NILFS_I(dat)->i_bmap;
+ struct nilfs_bmap *bmap = NILFS_I(nilfs->ns_dat)->i_bmap;
struct nilfs_bdesc *bdescs = buf;
int ret, i;
@@ -337,6 +336,7 @@ static int nilfs_ioctl_move_blocks(struct super_block *sb,
struct nilfs_argv *argv, void *buf)
{
size_t nmembs = argv->v_nmembs;
+ struct the_nilfs *nilfs = NILFS_SB(sb)->s_nilfs;
struct inode *inode;
struct nilfs_vdesc *vdesc;
struct buffer_head *bh, *n;
@@ -349,10 +349,21 @@ static int nilfs_ioctl_move_blocks(struct super_block *sb,
ino = vdesc->vd_ino;
cno = vdesc->vd_cno;
inode = nilfs_iget_for_gc(sb, ino, cno);
- if (unlikely(inode == NULL)) {
- ret = -ENOMEM;
+ if (IS_ERR(inode)) {
+ ret = PTR_ERR(inode);
goto failed;
}
+ if (list_empty(&NILFS_I(inode)->i_dirty)) {
+ /*
+ * Add the inode to GC inode list. Garbage Collection
+ * is serialized and no two processes manipulate the
+ * list simultaneously.
+ */
+ igrab(inode);
+ list_add(&NILFS_I(inode)->i_dirty,
+ &nilfs->ns_gc_inodes);
+ }
+
do {
ret = nilfs_ioctl_move_inode_block(inode, vdesc,
&buffers);
@@ -409,7 +420,7 @@ static int nilfs_ioctl_free_vblocknrs(struct the_nilfs *nilfs,
size_t nmembs = argv->v_nmembs;
int ret;
- ret = nilfs_dat_freev(nilfs_dat_inode(nilfs), buf, nmembs);
+ ret = nilfs_dat_freev(nilfs->ns_dat, buf, nmembs);
return (ret < 0) ? ret : nmembs;
}
@@ -418,8 +429,7 @@ static int nilfs_ioctl_mark_blocks_dirty(struct the_nilfs *nilfs,
struct nilfs_argv *argv, void *buf)
{
size_t nmembs = argv->v_nmembs;
- struct inode *dat = nilfs_dat_inode(nilfs);
- struct nilfs_bmap *bmap = NILFS_I(dat)->i_bmap;
+ struct nilfs_bmap *bmap = NILFS_I(nilfs->ns_dat)->i_bmap;
struct nilfs_bdesc *bdescs = buf;
int ret, i;
@@ -438,7 +448,7 @@ static int nilfs_ioctl_mark_blocks_dirty(struct the_nilfs *nilfs,
/* skip dead block */
continue;
if (bdescs[i].bd_level == 0) {
- ret = nilfs_mdt_mark_block_dirty(dat,
+ ret = nilfs_mdt_mark_block_dirty(nilfs->ns_dat,
bdescs[i].bd_offset);
if (ret < 0) {
WARN_ON(ret == -ENOENT);
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 39a5b84e2c9f..6a0e2a189f60 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -237,8 +237,6 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block,
*
* %-ENOENT - the specified block does not exist (hole block)
*
- * %-EINVAL - bmap is broken. (the caller should call nilfs_error())
- *
* %-EROFS - Read only filesystem (for create mode)
*/
int nilfs_mdt_get_block(struct inode *inode, unsigned long blkoff, int create,
@@ -273,8 +271,6 @@ int nilfs_mdt_get_block(struct inode *inode, unsigned long blkoff, int create,
* %-ENOMEM - Insufficient memory available.
*
* %-EIO - I/O error
- *
- * %-EINVAL - bmap is broken. (the caller should call nilfs_error())
*/
int nilfs_mdt_delete_block(struct inode *inode, unsigned long block)
{
@@ -350,8 +346,6 @@ int nilfs_mdt_forget_block(struct inode *inode, unsigned long block)
* %-EIO - I/O error
*
* %-ENOENT - the specified block does not exist (hole block)
- *
- * %-EINVAL - bmap is broken. (the caller should call nilfs_error())
*/
int nilfs_mdt_mark_block_dirty(struct inode *inode, unsigned long block)
{
@@ -499,31 +493,29 @@ int nilfs_mdt_freeze_buffer(struct inode *inode, struct buffer_head *bh)
struct buffer_head *bh_frozen;
struct page *page;
int blkbits = inode->i_blkbits;
- int ret = -ENOMEM;
page = grab_cache_page(&shadow->frozen_data, bh->b_page->index);
if (!page)
- return ret;
+ return -ENOMEM;
if (!page_has_buffers(page))
create_empty_buffers(page, 1 << blkbits, 0);
bh_frozen = nilfs_page_get_nth_block(page, bh_offset(bh) >> blkbits);
- if (bh_frozen) {
- if (!buffer_uptodate(bh_frozen))
- nilfs_copy_buffer(bh_frozen, bh);
- if (list_empty(&bh_frozen->b_assoc_buffers)) {
- list_add_tail(&bh_frozen->b_assoc_buffers,
- &shadow->frozen_buffers);
- set_buffer_nilfs_redirected(bh);
- } else {
- brelse(bh_frozen); /* already frozen */
- }
- ret = 0;
+
+ if (!buffer_uptodate(bh_frozen))
+ nilfs_copy_buffer(bh_frozen, bh);
+ if (list_empty(&bh_frozen->b_assoc_buffers)) {
+ list_add_tail(&bh_frozen->b_assoc_buffers,
+ &shadow->frozen_buffers);
+ set_buffer_nilfs_redirected(bh);
+ } else {
+ brelse(bh_frozen); /* already frozen */
}
+
unlock_page(page);
page_cache_release(page);
- return ret;
+ return 0;
}
struct buffer_head *
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index 6e9557ecf161..98034271cd02 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -577,6 +577,7 @@ const struct inode_operations nilfs_dir_inode_operations = {
.rename = nilfs_rename,
.setattr = nilfs_setattr,
.permission = nilfs_permission,
+ .fiemap = nilfs_fiemap,
};
const struct inode_operations nilfs_special_inode_operations = {
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index f7560da5a567..777e8fd04304 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -190,11 +190,6 @@ static inline int nilfs_doing_construction(void)
return nilfs_test_transaction_flag(NILFS_TI_WRITER);
}
-static inline struct inode *nilfs_dat_inode(const struct the_nilfs *nilfs)
-{
- return nilfs->ns_dat;
-}
-
/*
* function prototype
*/
@@ -256,14 +251,14 @@ extern void nilfs_update_inode(struct inode *, struct buffer_head *);
extern void nilfs_truncate(struct inode *);
extern void nilfs_evict_inode(struct inode *);
extern int nilfs_setattr(struct dentry *, struct iattr *);
-int nilfs_permission(struct inode *inode, int mask);
-extern int nilfs_load_inode_block(struct nilfs_sb_info *, struct inode *,
- struct buffer_head **);
+int nilfs_permission(struct inode *inode, int mask, unsigned int flags);
+int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh);
extern int nilfs_inode_dirty(struct inode *);
-extern int nilfs_set_file_dirty(struct nilfs_sb_info *, struct inode *,
- unsigned);
+int nilfs_set_file_dirty(struct inode *inode, unsigned nr_dirty);
extern int nilfs_mark_inode_dirty(struct inode *);
extern void nilfs_dirty_inode(struct inode *);
+int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ __u64 start, __u64 len);
/* super.c */
extern struct inode *nilfs_alloc_inode(struct super_block *);
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index a6c3c2e817f8..0c432416cfef 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -491,7 +491,7 @@ unsigned nilfs_page_count_clean_buffers(struct page *page,
}
return nc;
}
-
+
void nilfs_mapping_init_once(struct address_space *mapping)
{
memset(mapping, 0, sizeof(*mapping));
@@ -546,3 +546,87 @@ int __nilfs_clear_page_dirty(struct page *page)
}
return TestClearPageDirty(page);
}
+
+/**
+ * nilfs_find_uncommitted_extent - find extent of uncommitted data
+ * @inode: inode
+ * @start_blk: start block offset (in)
+ * @blkoff: start offset of the found extent (out)
+ *
+ * This function searches an extent of buffers marked "delayed" which
+ * starts from a block offset equal to or larger than @start_blk. If
+ * such an extent was found, this will store the start offset in
+ * @blkoff and return its length in blocks. Otherwise, zero is
+ * returned.
+ */
+unsigned long nilfs_find_uncommitted_extent(struct inode *inode,
+ sector_t start_blk,
+ sector_t *blkoff)
+{
+ unsigned int i;
+ pgoff_t index;
+ unsigned int nblocks_in_page;
+ unsigned long length = 0;
+ sector_t b;
+ struct pagevec pvec;
+ struct page *page;
+
+ if (inode->i_mapping->nrpages == 0)
+ return 0;
+
+ index = start_blk >> (PAGE_CACHE_SHIFT - inode->i_blkbits);
+ nblocks_in_page = 1U << (PAGE_CACHE_SHIFT - inode->i_blkbits);
+
+ pagevec_init(&pvec, 0);
+
+repeat:
+ pvec.nr = find_get_pages_contig(inode->i_mapping, index, PAGEVEC_SIZE,
+ pvec.pages);
+ if (pvec.nr == 0)
+ return length;
+
+ if (length > 0 && pvec.pages[0]->index > index)
+ goto out;
+
+ b = pvec.pages[0]->index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
+ i = 0;
+ do {
+ page = pvec.pages[i];
+
+ lock_page(page);
+ if (page_has_buffers(page)) {
+ struct buffer_head *bh, *head;
+
+ bh = head = page_buffers(page);
+ do {
+ if (b < start_blk)
+ continue;
+ if (buffer_delay(bh)) {
+ if (length == 0)
+ *blkoff = b;
+ length++;
+ } else if (length > 0) {
+ goto out_locked;
+ }
+ } while (++b, bh = bh->b_this_page, bh != head);
+ } else {
+ if (length > 0)
+ goto out_locked;
+
+ b += nblocks_in_page;
+ }
+ unlock_page(page);
+
+ } while (++i < pagevec_count(&pvec));
+
+ index = page->index + 1;
+ pagevec_release(&pvec);
+ cond_resched();
+ goto repeat;
+
+out_locked:
+ unlock_page(page);
+out:
+ pagevec_release(&pvec);
+ return length;
+}
diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index fb9e8a8a2038..622df27cd891 100644
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -66,6 +66,9 @@ void nilfs_mapping_init(struct address_space *mapping,
struct backing_dev_info *bdi,
const struct address_space_operations *aops);
unsigned nilfs_page_count_clean_buffers(struct page *, unsigned, unsigned);
+unsigned long nilfs_find_uncommitted_extent(struct inode *inode,
+ sector_t start_blk,
+ sector_t *blkoff);
#define NILFS_PAGE_BUG(page, m, a...) \
do { nilfs_page_bug(page); BUG(); } while (0)
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index 5d2711c28da7..3dfcd3b7d389 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -535,7 +535,7 @@ static int nilfs_recover_dsync_blocks(struct the_nilfs *nilfs,
if (unlikely(err))
goto failed_page;
- err = nilfs_set_file_dirty(sbi, inode, 1);
+ err = nilfs_set_file_dirty(inode, 1);
if (unlikely(err))
goto failed_page;
diff --git a/fs/nilfs2/sb.h b/fs/nilfs2/sb.h
index 35a07157b980..7a17715f215f 100644
--- a/fs/nilfs2/sb.h
+++ b/fs/nilfs2/sb.h
@@ -27,14 +27,6 @@
#include <linux/types.h>
#include <linux/fs.h>
-/*
- * Mount options
- */
-struct nilfs_mount_options {
- unsigned long mount_opt;
- __u64 snapshot_cno;
-};
-
struct the_nilfs;
struct nilfs_sc_info;
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 687d090cea34..55ebae5c7f39 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -504,17 +504,6 @@ static int nilfs_segctor_add_file_block(struct nilfs_sc_info *sci,
return err;
}
-static int nilfs_handle_bmap_error(int err, const char *fname,
- struct inode *inode, struct super_block *sb)
-{
- if (err == -EINVAL) {
- nilfs_error(sb, fname, "broken bmap (inode=%lu)\n",
- inode->i_ino);
- err = -EIO;
- }
- return err;
-}
-
/*
* Callback functions that enumerate, mark, and collect dirty blocks
*/
@@ -524,9 +513,8 @@ static int nilfs_collect_file_data(struct nilfs_sc_info *sci,
int err;
err = nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh);
- if (unlikely(err < 0))
- return nilfs_handle_bmap_error(err, __func__, inode,
- sci->sc_super);
+ if (err < 0)
+ return err;
err = nilfs_segctor_add_file_block(sci, bh, inode,
sizeof(struct nilfs_binfo_v));
@@ -539,13 +527,7 @@ static int nilfs_collect_file_node(struct nilfs_sc_info *sci,
struct buffer_head *bh,
struct inode *inode)
{
- int err;
-
- err = nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh);
- if (unlikely(err < 0))
- return nilfs_handle_bmap_error(err, __func__, inode,
- sci->sc_super);
- return 0;
+ return nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh);
}
static int nilfs_collect_file_bmap(struct nilfs_sc_info *sci,
@@ -588,9 +570,8 @@ static int nilfs_collect_dat_data(struct nilfs_sc_info *sci,
int err;
err = nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh);
- if (unlikely(err < 0))
- return nilfs_handle_bmap_error(err, __func__, inode,
- sci->sc_super);
+ if (err < 0)
+ return err;
err = nilfs_segctor_add_file_block(sci, bh, inode, sizeof(__le64));
if (!err)
@@ -776,9 +757,8 @@ static int nilfs_test_metadata_dirty(struct the_nilfs *nilfs,
ret++;
if (nilfs_mdt_fetch_dirty(nilfs->ns_sufile))
ret++;
- if (ret || nilfs_doing_gc())
- if (nilfs_mdt_fetch_dirty(nilfs_dat_inode(nilfs)))
- ret++;
+ if ((ret || nilfs_doing_gc()) && nilfs_mdt_fetch_dirty(nilfs->ns_dat))
+ ret++;
return ret;
}
@@ -814,7 +794,7 @@ static void nilfs_segctor_clear_metadata_dirty(struct nilfs_sc_info *sci)
nilfs_mdt_clear_dirty(sci->sc_root->ifile);
nilfs_mdt_clear_dirty(nilfs->ns_cpfile);
nilfs_mdt_clear_dirty(nilfs->ns_sufile);
- nilfs_mdt_clear_dirty(nilfs_dat_inode(nilfs));
+ nilfs_mdt_clear_dirty(nilfs->ns_dat);
}
static int nilfs_segctor_create_checkpoint(struct nilfs_sc_info *sci)
@@ -923,7 +903,7 @@ static void nilfs_segctor_fill_in_super_root(struct nilfs_sc_info *sci,
nilfs->ns_nongc_ctime : sci->sc_seg_ctime);
raw_sr->sr_flags = 0;
- nilfs_write_inode_common(nilfs_dat_inode(nilfs), (void *)raw_sr +
+ nilfs_write_inode_common(nilfs->ns_dat, (void *)raw_sr +
NILFS_SR_DAT_OFFSET(isz), 1);
nilfs_write_inode_common(nilfs->ns_cpfile, (void *)raw_sr +
NILFS_SR_CPFILE_OFFSET(isz), 1);
@@ -1179,7 +1159,7 @@ static int nilfs_segctor_collect_blocks(struct nilfs_sc_info *sci, int mode)
sci->sc_stage.scnt++; /* Fall through */
case NILFS_ST_DAT:
dat_stage:
- err = nilfs_segctor_scan_file(sci, nilfs_dat_inode(nilfs),
+ err = nilfs_segctor_scan_file(sci, nilfs->ns_dat,
&nilfs_sc_dat_ops);
if (unlikely(err))
break;
@@ -1563,7 +1543,6 @@ nilfs_segctor_update_payload_blocknr(struct nilfs_sc_info *sci,
return 0;
failed_bmap:
- err = nilfs_handle_bmap_error(err, __func__, inode, sci->sc_super);
return err;
}
@@ -1783,6 +1762,7 @@ static void nilfs_clear_copied_buffers(struct list_head *list, int err)
if (!err) {
set_buffer_uptodate(bh);
clear_buffer_dirty(bh);
+ clear_buffer_delay(bh);
clear_buffer_nilfs_volatile(bh);
}
brelse(bh); /* for b_assoc_buffers */
@@ -1909,6 +1889,7 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
b_assoc_buffers) {
set_buffer_uptodate(bh);
clear_buffer_dirty(bh);
+ clear_buffer_delay(bh);
clear_buffer_nilfs_volatile(bh);
clear_buffer_nilfs_redirected(bh);
if (bh == segbuf->sb_super_root) {
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 0030640e2d72..0994f6a76c07 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -47,7 +47,6 @@
#include <linux/crc32.h>
#include <linux/vfs.h>
#include <linux/writeback.h>
-#include <linux/kobject.h>
#include <linux/seq_file.h>
#include <linux/mount.h>
#include "nilfs.h"
@@ -111,12 +110,17 @@ void nilfs_error(struct super_block *sb, const char *function,
const char *fmt, ...)
{
struct nilfs_sb_info *sbi = NILFS_SB(sb);
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- printk(KERN_CRIT "NILFS error (device %s): %s: ", sb->s_id, function);
- vprintk(fmt, args);
- printk("\n");
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ printk(KERN_CRIT "NILFS error (device %s): %s: %pV\n",
+ sb->s_id, function, &vaf);
+
va_end(args);
if (!(sb->s_flags & MS_RDONLY)) {
@@ -136,13 +140,17 @@ void nilfs_error(struct super_block *sb, const char *function,
void nilfs_warning(struct super_block *sb, const char *function,
const char *fmt, ...)
{
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- printk(KERN_WARNING "NILFS warning (device %s): %s: ",
- sb->s_id, function);
- vprintk(fmt, args);
- printk("\n");
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ printk(KERN_WARNING "NILFS warning (device %s): %s: %pV\n",
+ sb->s_id, function, &vaf);
+
va_end(args);
}
@@ -162,10 +170,13 @@ struct inode *nilfs_alloc_inode(struct super_block *sb)
return &ii->vfs_inode;
}
-void nilfs_destroy_inode(struct inode *inode)
+static void nilfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
+ INIT_LIST_HEAD(&inode->i_dentry);
+
if (mdi) {
kfree(mdi->mi_bgl); /* kfree(NULL) is safe */
kfree(mdi);
@@ -173,6 +184,11 @@ void nilfs_destroy_inode(struct inode *inode)
kmem_cache_free(nilfs_inode_cachep, NILFS_I(inode));
}
+void nilfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, nilfs_i_callback);
+}
+
static int nilfs_sync_super(struct nilfs_sb_info *sbi, int flag)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
@@ -838,7 +854,7 @@ static int nilfs_attach_snapshot(struct super_block *s, __u64 cno,
static int nilfs_tree_was_touched(struct dentry *root_dentry)
{
- return atomic_read(&root_dentry->d_count) > 1;
+ return root_dentry->d_count > 1;
}
/**
@@ -1002,11 +1018,11 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data)
struct nilfs_sb_info *sbi = NILFS_SB(sb);
struct the_nilfs *nilfs = sbi->s_nilfs;
unsigned long old_sb_flags;
- struct nilfs_mount_options old_opts;
+ unsigned long old_mount_opt;
int err;
old_sb_flags = sb->s_flags;
- old_opts.mount_opt = sbi->s_mount_opt;
+ old_mount_opt = sbi->s_mount_opt;
if (!parse_options(data, sb, 1)) {
err = -EINVAL;
@@ -1075,7 +1091,7 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data)
restore_opts:
sb->s_flags = old_sb_flags;
- sbi->s_mount_opt = old_opts.mount_opt;
+ sbi->s_mount_opt = old_mount_opt;
return err;
}
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 0254be2d73c6..ad4ac607cf57 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -329,7 +329,6 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
printk(KERN_INFO "NILFS: recovery complete.\n");
skip_recovery:
- set_nilfs_loaded(nilfs);
nilfs_clear_recovery_info(&ri);
sbi->s_super->s_flags = s_flags;
return 0;
@@ -651,12 +650,11 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump,
int nilfs_count_free_blocks(struct the_nilfs *nilfs, sector_t *nblocks)
{
- struct inode *dat = nilfs_dat_inode(nilfs);
unsigned long ncleansegs;
- down_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
+ down_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
ncleansegs = nilfs_sufile_get_ncleansegs(nilfs->ns_sufile);
- up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
+ up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
*nblocks = (sector_t)ncleansegs * nilfs->ns_blocks_per_segment;
return 0;
}
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 69226e14b745..fd85e4c05c6b 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -36,8 +36,6 @@
/* the_nilfs struct */
enum {
THE_NILFS_INIT = 0, /* Information from super_block is set */
- THE_NILFS_LOADED, /* Roll-back/roll-forward has done and
- the latest checkpoint was loaded */
THE_NILFS_DISCONTINUED, /* 'next' pointer chain has broken */
THE_NILFS_GC_RUNNING, /* gc process is running */
THE_NILFS_SB_DIRTY, /* super block is dirty */
@@ -178,7 +176,6 @@ static inline int nilfs_##name(struct the_nilfs *nilfs) \
}
THE_NILFS_FNS(INIT, init)
-THE_NILFS_FNS(LOADED, loaded)
THE_NILFS_FNS(DISCONTINUED, discontinued)
THE_NILFS_FNS(GC_RUNNING, gc_running)
THE_NILFS_FNS(SB_DIRTY, sb_dirty)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 11:17:57 +0000