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Message-Id: <20240122140202.6950-16-konishi.ryusuke@gmail.com>
Date: Mon, 22 Jan 2024 23:02:02 +0900
From: Ryusuke Konishi <konishi.ryusuke@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-nilfs@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 15/15] nilfs2: convert cpfile to use kmap_local
Convert all remaining usages of kmap_atomic in cpfile to kmap_local.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@...il.com>
---
fs/nilfs2/cpfile.c | 90 +++++++++++++++++++++++-----------------------
1 file changed, 45 insertions(+), 45 deletions(-)
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index b5bad332d630..2c57132584de 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -460,7 +460,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
continue;
}
- kaddr = kmap_atomic(cp_bh->b_page);
+ kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(
cpfile, cno, cp_bh, kaddr);
nicps = 0;
@@ -482,7 +482,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
cpfile, cp_bh, kaddr, nicps);
if (count == 0) {
/* make hole */
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(cp_bh);
ret =
nilfs_cpfile_delete_checkpoint_block(
@@ -497,18 +497,18 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
}
}
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(cp_bh);
}
if (tnicps > 0) {
- kaddr = kmap_atomic(header_bh->b_page);
+ kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh,
kaddr);
le64_add_cpu(&header->ch_ncheckpoints, -(u64)tnicps);
mark_buffer_dirty(header_bh);
nilfs_mdt_mark_dirty(cpfile);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
}
brelse(header_bh);
@@ -560,7 +560,7 @@ static ssize_t nilfs_cpfile_do_get_cpinfo(struct inode *cpfile, __u64 *cnop,
}
ncps = nilfs_cpfile_checkpoints_in_block(cpfile, cno, cur_cno);
- kaddr = kmap_atomic(bh->b_page);
+ kaddr = kmap_local_page(bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
for (i = 0; i < ncps && n < nci; i++, cp = (void *)cp + cpsz) {
if (!nilfs_checkpoint_invalid(cp)) {
@@ -570,7 +570,7 @@ static ssize_t nilfs_cpfile_do_get_cpinfo(struct inode *cpfile, __u64 *cnop,
n++;
}
}
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(bh);
}
@@ -604,10 +604,10 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
ret = nilfs_cpfile_get_header_block(cpfile, &bh);
if (ret < 0)
goto out;
- kaddr = kmap_atomic(bh->b_page);
+ kaddr = kmap_local_page(bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, bh, kaddr);
curr = le64_to_cpu(header->ch_snapshot_list.ssl_next);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(bh);
if (curr == 0) {
ret = 0;
@@ -625,7 +625,7 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
ret = 0; /* No snapshots (started from a hole block) */
goto out;
}
- kaddr = kmap_atomic(bh->b_page);
+ kaddr = kmap_local_page(bh->b_page);
while (n < nci) {
cp = nilfs_cpfile_block_get_checkpoint(cpfile, curr, bh, kaddr);
curr = ~(__u64)0; /* Terminator */
@@ -641,7 +641,7 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
next_blkoff = nilfs_cpfile_get_blkoff(cpfile, next);
if (curr_blkoff != next_blkoff) {
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(bh);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, next,
0, &bh);
@@ -649,12 +649,12 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
WARN_ON(ret == -ENOENT);
goto out;
}
- kaddr = kmap_atomic(bh->b_page);
+ kaddr = kmap_local_page(bh->b_page);
}
curr = next;
curr_blkoff = next_blkoff;
}
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(bh);
*cnop = curr;
ret = n;
@@ -763,24 +763,24 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(cp_bh->b_page);
+ kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
ret = -ENOENT;
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
goto out_cp;
}
if (nilfs_checkpoint_snapshot(cp)) {
ret = 0;
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
goto out_cp;
}
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
ret = nilfs_cpfile_get_header_block(cpfile, &header_bh);
if (ret < 0)
goto out_cp;
- kaddr = kmap_atomic(header_bh->b_page);
+ kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
list = &header->ch_snapshot_list;
curr_bh = header_bh;
@@ -792,13 +792,13 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
prev_blkoff = nilfs_cpfile_get_blkoff(cpfile, prev);
curr = prev;
if (curr_blkoff != prev_blkoff) {
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(curr_bh);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, curr,
0, &curr_bh);
if (ret < 0)
goto out_header;
- kaddr = kmap_atomic(curr_bh->b_page);
+ kaddr = kmap_local_page(curr_bh->b_page);
}
curr_blkoff = prev_blkoff;
cp = nilfs_cpfile_block_get_checkpoint(
@@ -806,7 +806,7 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
list = &cp->cp_snapshot_list;
prev = le64_to_cpu(list->ssl_prev);
}
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
if (prev != 0) {
ret = nilfs_cpfile_get_checkpoint_block(cpfile, prev, 0,
@@ -818,29 +818,29 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
get_bh(prev_bh);
}
- kaddr = kmap_atomic(curr_bh->b_page);
+ kaddr = kmap_local_page(curr_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, curr, curr_bh, kaddr);
list->ssl_prev = cpu_to_le64(cno);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
- kaddr = kmap_atomic(cp_bh->b_page);
+ kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
cp->cp_snapshot_list.ssl_next = cpu_to_le64(curr);
cp->cp_snapshot_list.ssl_prev = cpu_to_le64(prev);
nilfs_checkpoint_set_snapshot(cp);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
- kaddr = kmap_atomic(prev_bh->b_page);
+ kaddr = kmap_local_page(prev_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, prev, prev_bh, kaddr);
list->ssl_next = cpu_to_le64(cno);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
- kaddr = kmap_atomic(header_bh->b_page);
+ kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
le64_add_cpu(&header->ch_nsnapshots, 1);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
mark_buffer_dirty(prev_bh);
mark_buffer_dirty(curr_bh);
@@ -881,23 +881,23 @@ static int nilfs_cpfile_clear_snapshot(struct inode *cpfile, __u64 cno)
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(cp_bh->b_page);
+ kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
ret = -ENOENT;
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
goto out_cp;
}
if (!nilfs_checkpoint_snapshot(cp)) {
ret = 0;
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
goto out_cp;
}
list = &cp->cp_snapshot_list;
next = le64_to_cpu(list->ssl_next);
prev = le64_to_cpu(list->ssl_prev);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
ret = nilfs_cpfile_get_header_block(cpfile, &header_bh);
if (ret < 0)
@@ -921,29 +921,29 @@ static int nilfs_cpfile_clear_snapshot(struct inode *cpfile, __u64 cno)
get_bh(prev_bh);
}
- kaddr = kmap_atomic(next_bh->b_page);
+ kaddr = kmap_local_page(next_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, next, next_bh, kaddr);
list->ssl_prev = cpu_to_le64(prev);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
- kaddr = kmap_atomic(prev_bh->b_page);
+ kaddr = kmap_local_page(prev_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, prev, prev_bh, kaddr);
list->ssl_next = cpu_to_le64(next);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
- kaddr = kmap_atomic(cp_bh->b_page);
+ kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
cp->cp_snapshot_list.ssl_next = cpu_to_le64(0);
cp->cp_snapshot_list.ssl_prev = cpu_to_le64(0);
nilfs_checkpoint_clear_snapshot(cp);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
- kaddr = kmap_atomic(header_bh->b_page);
+ kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
le64_add_cpu(&header->ch_nsnapshots, -1);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
mark_buffer_dirty(next_bh);
mark_buffer_dirty(prev_bh);
@@ -1002,13 +1002,13 @@ int nilfs_cpfile_is_snapshot(struct inode *cpfile, __u64 cno)
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &bh);
if (ret < 0)
goto out;
- kaddr = kmap_atomic(bh->b_page);
+ kaddr = kmap_local_page(bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
if (nilfs_checkpoint_invalid(cp))
ret = -ENOENT;
else
ret = nilfs_checkpoint_snapshot(cp);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(bh);
out:
@@ -1085,12 +1085,12 @@ int nilfs_cpfile_get_stat(struct inode *cpfile, struct nilfs_cpstat *cpstat)
ret = nilfs_cpfile_get_header_block(cpfile, &bh);
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(bh->b_page);
+ kaddr = kmap_local_page(bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, bh, kaddr);
cpstat->cs_cno = nilfs_mdt_cno(cpfile);
cpstat->cs_ncps = le64_to_cpu(header->ch_ncheckpoints);
cpstat->cs_nsss = le64_to_cpu(header->ch_nsnapshots);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
brelse(bh);
out_sem:
--
2.34.1
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