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-rw-r--r--fs/ext3/acl.c9
-rw-r--r--fs/ext3/balloc.c38
-rw-r--r--fs/ext3/file.c1
-rw-r--r--fs/ext3/fsync.c11
-rw-r--r--fs/ext3/ialloc.c4
-rw-r--r--fs/ext3/inode.c193
-rw-r--r--fs/ext3/ioctl.c4
-rw-r--r--fs/ext3/namei.c13
-rw-r--r--fs/ext3/super.c13
-rw-r--r--fs/ext3/xattr.c12
10 files changed, 207 insertions, 91 deletions
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 6c29bf0df04a..3091f62e55b6 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -199,12 +199,10 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
case ACL_TYPE_ACCESS:
name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
- mode_t mode = inode->i_mode;
- error = posix_acl_equiv_mode(acl, &mode);
+ error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
return error;
else {
- inode->i_mode = mode;
inode->i_ctime = CURRENT_TIME_SEC;
ext3_mark_inode_dirty(handle, inode);
if (error == 0)
@@ -261,19 +259,16 @@ ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
inode->i_mode &= ~current_umask();
}
if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
- mode_t mode = inode->i_mode;
-
if (S_ISDIR(inode->i_mode)) {
error = ext3_set_acl(handle, inode,
ACL_TYPE_DEFAULT, acl);
if (error)
goto cleanup;
}
- error = posix_acl_create(&acl, GFP_NOFS, &mode);
+ error = posix_acl_create(&acl, GFP_NOFS, &inode->i_mode);
if (error < 0)
return error;
- inode->i_mode = mode;
if (error > 0) {
/* This is an extended ACL */
error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index fe52297e31ad..6386d76f44a7 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -21,6 +21,7 @@
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
+#include <trace/events/ext3.h>
/*
* balloc.c contains the blocks allocation and deallocation routines
@@ -161,6 +162,7 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
desc = ext3_get_group_desc(sb, block_group, NULL);
if (!desc)
return NULL;
+ trace_ext3_read_block_bitmap(sb, block_group);
bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
bh = sb_getblk(sb, bitmap_blk);
if (unlikely(!bh)) {
@@ -351,6 +353,7 @@ void ext3_rsv_window_add(struct super_block *sb,
struct rb_node * parent = NULL;
struct ext3_reserve_window_node *this;
+ trace_ext3_rsv_window_add(sb, rsv);
while (*p)
{
parent = *p;
@@ -476,8 +479,10 @@ void ext3_discard_reservation(struct inode *inode)
rsv = &block_i->rsv_window_node;
if (!rsv_is_empty(&rsv->rsv_window)) {
spin_lock(rsv_lock);
- if (!rsv_is_empty(&rsv->rsv_window))
+ if (!rsv_is_empty(&rsv->rsv_window)) {
+ trace_ext3_discard_reservation(inode, rsv);
rsv_window_remove(inode->i_sb, rsv);
+ }
spin_unlock(rsv_lock);
}
}
@@ -683,14 +688,10 @@ error_return:
void ext3_free_blocks(handle_t *handle, struct inode *inode,
ext3_fsblk_t block, unsigned long count)
{
- struct super_block * sb;
+ struct super_block *sb = inode->i_sb;
unsigned long dquot_freed_blocks;
- sb = inode->i_sb;
- if (!sb) {
- printk ("ext3_free_blocks: nonexistent device");
- return;
- }
+ trace_ext3_free_blocks(inode, block, count);
ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
if (dquot_freed_blocks)
dquot_free_block(inode, dquot_freed_blocks);
@@ -1136,6 +1137,7 @@ static int alloc_new_reservation(struct ext3_reserve_window_node *my_rsv,
else
start_block = grp_goal + group_first_block;
+ trace_ext3_alloc_new_reservation(sb, start_block);
size = my_rsv->rsv_goal_size;
if (!rsv_is_empty(&my_rsv->rsv_window)) {
@@ -1230,8 +1232,11 @@ retry:
* check if the first free block is within the
* free space we just reserved
*/
- if (start_block >= my_rsv->rsv_start && start_block <= my_rsv->rsv_end)
+ if (start_block >= my_rsv->rsv_start &&
+ start_block <= my_rsv->rsv_end) {
+ trace_ext3_reserved(sb, start_block, my_rsv);
return 0; /* success */
+ }
/*
* if the first free bit we found is out of the reservable space
* continue search for next reservable space,
@@ -1514,10 +1519,6 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
*errp = -ENOSPC;
sb = inode->i_sb;
- if (!sb) {
- printk("ext3_new_block: nonexistent device");
- return 0;
- }
/*
* Check quota for allocation of this block.
@@ -1528,8 +1529,10 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
return 0;
}
+ trace_ext3_request_blocks(inode, goal, num);
+
sbi = EXT3_SB(sb);
- es = EXT3_SB(sb)->s_es;
+ es = sbi->s_es;
ext3_debug("goal=%lu.\n", goal);
/*
* Allocate a block from reservation only when
@@ -1742,6 +1745,10 @@ allocated:
brelse(bitmap_bh);
dquot_free_block(inode, *count-num);
*count = num;
+
+ trace_ext3_allocate_blocks(inode, goal, num,
+ (unsigned long long)ret_block);
+
return ret_block;
io_error:
@@ -1996,6 +2003,7 @@ ext3_grpblk_t ext3_trim_all_free(struct super_block *sb, unsigned int group,
if ((next - start) < minblocks)
goto free_extent;
+ trace_ext3_discard_blocks(sb, discard_block, next - start);
/* Send the TRIM command down to the device */
err = sb_issue_discard(sb, discard_block, next - start,
GFP_NOFS, 0);
@@ -2100,7 +2108,7 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (unlikely(minlen > EXT3_BLOCKS_PER_GROUP(sb)))
return -EINVAL;
if (start >= max_blks)
- goto out;
+ return -EINVAL;
if (start + len > max_blks)
len = max_blks - start;
@@ -2148,8 +2156,6 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (ret >= 0)
ret = 0;
-
-out:
range->len = trimmed * sb->s_blocksize;
return ret;
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index 2be5b99097f1..724df69847dc 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -71,7 +71,6 @@ const struct file_operations ext3_file_operations = {
};
const struct inode_operations ext3_file_inode_operations = {
- .truncate = ext3_truncate,
.setattr = ext3_setattr,
#ifdef CONFIG_EXT3_FS_XATTR
.setxattr = generic_setxattr,
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c
index 0bcf63adb80a..d494c554c6e6 100644
--- a/fs/ext3/fsync.c
+++ b/fs/ext3/fsync.c
@@ -30,6 +30,7 @@
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
+#include <trace/events/ext3.h>
/*
* akpm: A new design for ext3_sync_file().
@@ -51,12 +52,14 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
int ret, needs_barrier = 0;
tid_t commit_tid;
+ trace_ext3_sync_file_enter(file, datasync);
+
if (inode->i_sb->s_flags & MS_RDONLY)
return 0;
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (ret)
- return ret;
+ goto out;
/*
* Taking the mutex here just to keep consistent with how fsync was
@@ -83,7 +86,8 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
*/
if (ext3_should_journal_data(inode)) {
mutex_unlock(&inode->i_mutex);
- return ext3_force_commit(inode->i_sb);
+ ret = ext3_force_commit(inode->i_sb);
+ goto out;
}
if (datasync)
@@ -104,6 +108,9 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
*/
if (needs_barrier)
blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+
mutex_unlock(&inode->i_mutex);
+out:
+ trace_ext3_sync_file_exit(inode, ret);
return ret;
}
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index bfc2dc43681d..bf09cbf938cc 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -23,6 +23,7 @@
#include <linux/buffer_head.h>
#include <linux/random.h>
#include <linux/bitops.h>
+#include <trace/events/ext3.h>
#include <asm/byteorder.h>
@@ -118,6 +119,7 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
ino = inode->i_ino;
ext3_debug ("freeing inode %lu\n", ino);
+ trace_ext3_free_inode(inode);
is_directory = S_ISDIR(inode->i_mode);
@@ -426,6 +428,7 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir,
return ERR_PTR(-EPERM);
sb = dir->i_sb;
+ trace_ext3_request_inode(dir, mode);
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
@@ -601,6 +604,7 @@ got:
}
ext3_debug("allocating inode %lu\n", inode->i_ino);
+ trace_ext3_allocate_inode(inode, dir, mode);
goto really_out;
fail:
ext3_std_error(sb, err);
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 2978a2a17a59..04da6acde85d 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -38,10 +38,12 @@
#include <linux/bio.h>
#include <linux/fiemap.h>
#include <linux/namei.h>
+#include <trace/events/ext3.h>
#include "xattr.h"
#include "acl.h"
static int ext3_writepage_trans_blocks(struct inode *inode);
+static int ext3_block_truncate_page(struct inode *inode, loff_t from);
/*
* Test whether an inode is a fast symlink.
@@ -70,6 +72,7 @@ int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
might_sleep();
+ trace_ext3_forget(inode, is_metadata, blocknr);
BUFFER_TRACE(bh, "enter");
jbd_debug(4, "forgetting bh %p: is_metadata = %d, mode %o, "
@@ -194,20 +197,47 @@ static int truncate_restart_transaction(handle_t *handle, struct inode *inode)
*/
void ext3_evict_inode (struct inode *inode)
{
+ struct ext3_inode_info *ei = EXT3_I(inode);
struct ext3_block_alloc_info *rsv;
handle_t *handle;
int want_delete = 0;
+ trace_ext3_evict_inode(inode);
if (!inode->i_nlink && !is_bad_inode(inode)) {
dquot_initialize(inode);
want_delete = 1;
}
+ /*
+ * When journalling data dirty buffers are tracked only in the journal.
+ * So although mm thinks everything is clean and ready for reaping the
+ * inode might still have some pages to write in the running
+ * transaction or waiting to be checkpointed. Thus calling
+ * journal_invalidatepage() (via truncate_inode_pages()) to discard
+ * these buffers can cause data loss. Also even if we did not discard
+ * these buffers, we would have no way to find them after the inode
+ * is reaped and thus user could see stale data if he tries to read
+ * them before the transaction is checkpointed. So be careful and
+ * force everything to disk here... We use ei->i_datasync_tid to
+ * store the newest transaction containing inode's data.
+ *
+ * Note that directories do not have this problem because they don't
+ * use page cache.
+ */
+ if (inode->i_nlink && ext3_should_journal_data(inode) &&
+ (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode))) {
+ tid_t commit_tid = atomic_read(&ei->i_datasync_tid);
+ journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
+
+ log_start_commit(journal, commit_tid);
+ log_wait_commit(journal, commit_tid);
+ filemap_write_and_wait(&inode->i_data);
+ }
truncate_inode_pages(&inode->i_data, 0);
ext3_discard_reservation(inode);
- rsv = EXT3_I(inode)->i_block_alloc_info;
- EXT3_I(inode)->i_block_alloc_info = NULL;
+ rsv = ei->i_block_alloc_info;
+ ei->i_block_alloc_info = NULL;
if (unlikely(rsv))
kfree(rsv);
@@ -231,15 +261,13 @@ void ext3_evict_inode (struct inode *inode)
if (inode->i_blocks)
ext3_truncate(inode);
/*
- * Kill off the orphan record which ext3_truncate created.
- * AKPM: I think this can be inside the above `if'.
- * Note that ext3_orphan_del() has to be able to cope with the
- * deletion of a non-existent orphan - this is because we don't
- * know if ext3_truncate() actually created an orphan record.
- * (Well, we could do this if we need to, but heck - it works)
+ * Kill off the orphan record created when the inode lost the last
+ * link. Note that ext3_orphan_del() has to be able to cope with the
+ * deletion of a non-existent orphan - ext3_truncate() could
+ * have removed the record.
*/
ext3_orphan_del(handle, inode);
- EXT3_I(inode)->i_dtime = get_seconds();
+ ei->i_dtime = get_seconds();
/*
* One subtle ordering requirement: if anything has gone wrong
@@ -842,6 +870,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
ext3_fsblk_t first_block = 0;
+ trace_ext3_get_blocks_enter(inode, iblock, maxblocks, create);
J_ASSERT(handle != NULL || create == 0);
depth = ext3_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
@@ -886,6 +915,9 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
if (!create || err == -EIO)
goto cleanup;
+ /*
+ * Block out ext3_truncate while we alter the tree
+ */
mutex_lock(&ei->truncate_mutex);
/*
@@ -934,9 +966,6 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
*/
count = ext3_blks_to_allocate(partial, indirect_blks,
maxblocks, blocks_to_boundary);
- /*
- * Block out ext3_truncate while we alter the tree
- */
err = ext3_alloc_branch(handle, inode, indirect_blks, &count, goal,
offsets + (partial - chain), partial);
@@ -970,6 +999,9 @@ cleanup:
}
BUFFER_TRACE(bh_result, "returned");
out:
+ trace_ext3_get_blocks_exit(inode, iblock,
+ depth ? le32_to_cpu(chain[depth-1].key) : 0,
+ count, err);
return err;
}
@@ -1202,6 +1234,16 @@ static void ext3_truncate_failed_write(struct inode *inode)
ext3_truncate(inode);
}
+/*
+ * Truncate blocks that were not used by direct IO write. We have to zero out
+ * the last file block as well because direct IO might have written to it.
+ */
+static void ext3_truncate_failed_direct_write(struct inode *inode)
+{
+ ext3_block_truncate_page(inode, inode->i_size);
+ ext3_truncate(inode);
+}
+
static int ext3_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@@ -1217,6 +1259,8 @@ static int ext3_write_begin(struct file *file, struct address_space *mapping,
* we allocate blocks but write fails for some reason */
int needed_blocks = ext3_writepage_trans_blocks(inode) + 1;
+ trace_ext3_write_begin(inode, pos, len, flags);
+
index = pos >> PAGE_CACHE_SHIFT;
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
@@ -1332,6 +1376,7 @@ static int ext3_ordered_write_end(struct file *file,
unsigned from, to;
int ret = 0, ret2;
+ trace_ext3_ordered_write_end(inode, pos, len, copied);
copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
from = pos & (PAGE_CACHE_SIZE - 1);
@@ -1367,6 +1412,7 @@ static int ext3_writeback_write_end(struct file *file,
struct inode *inode = file->f_mapping->host;
int ret;
+ trace_ext3_writeback_write_end(inode, pos, len, copied);
copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
update_file_sizes(inode, pos, copied);
/*
@@ -1391,10 +1437,12 @@ static int ext3_journalled_write_end(struct file *file,
{
handle_t *handle = ext3_journal_current_handle();
struct inode *inode = mapping->host;
+ struct ext3_inode_info *ei = EXT3_I(inode);
int ret = 0, ret2;
int partial = 0;
unsigned from, to;
+ trace_ext3_journalled_write_end(inode, pos, len, copied);
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
@@ -1419,8 +1467,9 @@ static int ext3_journalled_write_end(struct file *file,
if (pos + len > inode->i_size && ext3_can_truncate(inode))
ext3_orphan_add(handle, inode);
ext3_set_inode_state(inode, EXT3_STATE_JDATA);
- if (inode->i_size > EXT3_I(inode)->i_disksize) {
- EXT3_I(inode)->i_disksize = inode->i_size;
+ atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);
+ if (inode->i_size > ei->i_disksize) {
+ ei->i_disksize = inode->i_size;
ret2 = ext3_mark_inode_dirty(handle, inode);
if (!ret)
ret = ret2;
@@ -1577,6 +1626,7 @@ static int ext3_ordered_writepage(struct page *page,
if (ext3_journal_current_handle())
goto out_fail;
+ trace_ext3_ordered_writepage(page);
if (!page_has_buffers(page)) {
create_empty_buffers(page, inode->i_sb->s_blocksize,
(1 << BH_Dirty)|(1 << BH_Uptodate));
@@ -1647,6 +1697,7 @@ static int ext3_writeback_writepage(struct page *page,
if (ext3_journal_current_handle())
goto out_fail;
+ trace_ext3_writeback_writepage(page);
if (page_has_buffers(page)) {
if (!walk_page_buffers(NULL, page_buffers(page), 0,
PAGE_CACHE_SIZE, NULL, buffer_unmapped)) {
@@ -1689,6 +1740,7 @@ static int ext3_journalled_writepage(struct page *page,
if (ext3_journal_current_handle())
goto no_write;
+ trace_ext3_journalled_writepage(page);
handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
@@ -1715,6 +1767,8 @@ static int ext3_journalled_writepage(struct page *page,
if (ret == 0)
ret = err;
ext3_set_inode_state(inode, EXT3_STATE_JDATA);
+ atomic_set(&EXT3_I(inode)->i_datasync_tid,
+ handle->h_transaction->t_tid);
unlock_page(page);
} else {
/*
@@ -1739,6 +1793,7 @@ out_unlock:
static int ext3_readpage(struct file *file, struct page *page)
{
+ trace_ext3_readpage(page);
return mpage_readpage(page, ext3_get_block);
}
@@ -1753,6 +1808,8 @@ static void ext3_invalidatepage(struct page *page, unsigned long offset)
{
journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+ trace_ext3_invalidatepage(page, offset);
+
/*
* If it's a full truncate we just forget about the pending dirtying
*/
@@ -1766,6 +1823,7 @@ static int ext3_releasepage(struct page *page, gfp_t wait)
{
journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+ trace_ext3_releasepage(page);
WARN_ON(PageChecked(page));
if (!page_has_buffers(page))
return 0;
@@ -1794,6 +1852,8 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
size_t count = iov_length(iov, nr_segs);
int retries = 0;
+ trace_ext3_direct_IO_enter(inode, offset, iov_length(iov, nr_segs), rw);
+
if (rw == WRITE) {
loff_t final_size = offset + count;
@@ -1827,7 +1887,7 @@ retry:
loff_t end = offset + iov_length(iov, nr_segs);
if (end > isize)
- vmtruncate(inode, isize);
+ ext3_truncate_failed_direct_write(inode);
}
if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
goto retry;
@@ -1841,7 +1901,7 @@ retry:
/* This is really bad luck. We've written the data
* but cannot extend i_size. Truncate allocated blocks
* and pretend the write failed... */
- ext3_truncate(inode);
+ ext3_truncate_failed_direct_write(inode);
ret = PTR_ERR(handle);
goto out;
}
@@ -1867,6 +1927,8 @@ retry:
ret = err;
}
out:
+ trace_ext3_direct_IO_exit(inode, offset,
+ iov_length(iov, nr_segs), rw, ret);
return ret;
}
@@ -1949,17 +2011,24 @@ void ext3_set_aops(struct inode *inode)
* This required during truncate. We need to physically zero the tail end
* of that block so it doesn't yield old data if the file is later grown.
*/
-static int ext3_block_truncate_page(handle_t *handle, struct page *page,
- struct address_space *mapping, loff_t from)
+static int ext3_block_truncate_page(struct inode *inode, loff_t from)
{
ext3_fsblk_t index = from >> PAGE_CACHE_SHIFT;
- unsigned offset = from & (PAGE_CACHE_SIZE-1);
+ unsigned offset = from & (PAGE_CACHE_SIZE - 1);
unsigned blocksize, iblock, length, pos;
- struct inode *inode = mapping->host;
+ struct page *page;
+ handle_t *handle = NULL;
struct buffer_head *bh;
int err = 0;
+ /* Truncated on block boundary - nothing to do */
blocksize = inode->i_sb->s_blocksize;
+ if ((from & (blocksize - 1)) == 0)
+ return 0;
+
+ page = grab_cache_page(inode->i_mapping, index);
+ if (!page)
+ return -ENOMEM;
length = blocksize - (offset & (blocksize - 1));
iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
@@ -2004,11 +2073,23 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
goto unlock;
}
+ /* data=writeback mode doesn't need transaction to zero-out data */
+ if (!ext3_should_writeback_data(inode)) {
+ /* We journal at most one block */
+ handle = ext3_journal_start(inode, 1);
+ if (IS_ERR(handle)) {
+ clear_highpage(page);
+ flush_dcache_page(page);
+ err = PTR_ERR(handle);
+ goto unlock;
+ }
+ }
+
if (ext3_should_journal_data(inode)) {
BUFFER_TRACE(bh, "get write access");
err = ext3_journal_get_write_access(handle, bh);
if (err)
- goto unlock;
+ goto stop;
}
zero_user(page, offset, length);
@@ -2022,6 +2103,9 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
err = ext3_journal_dirty_data(handle, bh);
mark_buffer_dirty(bh);
}
+stop:
+ if (handle)
+ ext3_journal_stop(handle);
unlock:
unlock_page(page);
@@ -2390,8 +2474,6 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
int ext3_can_truncate(struct inode *inode)
{
- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
- return 0;
if (S_ISREG(inode->i_mode))
return 1;
if (S_ISDIR(inode->i_mode))
@@ -2435,7 +2517,6 @@ void ext3_truncate(struct inode *inode)
struct ext3_inode_info *ei = EXT3_I(inode);
__le32 *i_data = ei->i_data;
int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
- struct address_space *mapping = inode->i_mapping;
int offsets[4];
Indirect chain[4];
Indirect *partial;
@@ -2443,7 +2524,8 @@ void ext3_truncate(struct inode *inode)
int n;
long last_block;
unsigned blocksize = inode->i_sb->s_blocksize;
- struct page *page;
+
+ trace_ext3_truncate_enter(inode);
if (!ext3_can_truncate(inode))
goto out_notrans;
@@ -2451,37 +2533,12 @@ void ext3_truncate(struct inode *inode)
if (inode->i_size == 0 && ext3_should_writeback_data(inode))
ext3_set_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE);
- /*
- * We have to lock the EOF page here, because lock_page() nests
- * outside journal_start().
- */
- if ((inode->i_size & (blocksize - 1)) == 0) {
- /* Block boundary? Nothing to do */
- page = NULL;
- } else {
- page = grab_cache_page(mapping,
- inode->i_size >> PAGE_CACHE_SHIFT);
- if (!page)
- goto out_notrans;
- }
-
handle = start_transaction(inode);
- if (IS_ERR(handle)) {
- if (page) {
- clear_highpage(page);
- flush_dcache_page(page);
- unlock_page(page);
- page_cache_release(page);
- }
+ if (IS_ERR(handle))
goto out_notrans;
- }
last_block = (inode->i_size + blocksize-1)
>> EXT3_BLOCK_SIZE_BITS(inode->i_sb);
-
- if (page)
- ext3_block_truncate_page(handle, page, mapping, inode->i_size);
-
n = ext3_block_to_path(inode, last_block, offsets, NULL);
if (n == 0)
goto out_stop; /* error */
@@ -2596,6 +2653,7 @@ out_stop:
ext3_orphan_del(handle, inode);
ext3_journal_stop(handle);
+ trace_ext3_truncate_exit(inode);
return;
out_notrans:
/*
@@ -2604,6 +2662,7 @@ out_notrans:
*/
if (inode->i_nlink)
ext3_orphan_del(NULL, inode);
+ trace_ext3_truncate_exit(inode);
}
static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb,
@@ -2745,6 +2804,7 @@ make_io:
* has in-inode xattrs, or we don't have this inode in memory.
* Read the block from disk.
*/
+ trace_ext3_load_inode(inode);
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
submit_bh(READ_META, bh);
@@ -3229,18 +3289,36 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
}
error = ext3_orphan_add(handle, inode);
+ if (error) {
+ ext3_journal_stop(handle);
+ goto err_out;
+ }
EXT3_I(inode)->i_disksize = attr->ia_size;
- rc = ext3_mark_inode_dirty(handle, inode);
- if (!error)
- error = rc;
+ error = ext3_mark_inode_dirty(handle, inode);
ext3_journal_stop(handle);
+ if (error) {
+ /* Some hard fs error must have happened. Bail out. */
+ ext3_orphan_del(NULL, inode);
+ goto err_out;
+ }
+ rc = ext3_block_truncate_page(inode, attr->ia_size);
+ if (rc) {
+ /* Cleanup orphan list and exit */
+ handle = ext3_journal_start(inode, 3);
+ if (IS_ERR(handle)) {
+ ext3_orphan_del(NULL, inode);
+ goto err_out;
+ }
+ ext3_orphan_del(handle, inode);
+ ext3_journal_stop(handle);
+ goto err_out;
+ }
}
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
- rc = vmtruncate(inode, attr->ia_size);
- if (rc)
- goto err_out;
+ truncate_setsize(inode, attr->ia_size);
+ ext3_truncate(inode);
}
setattr_copy(inode, attr);
@@ -3374,6 +3452,7 @@ int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)
int err;
might_sleep();
+ trace_ext3_mark_inode_dirty(inode, _RET_IP_);
err = ext3_reserve_inode_write(handle, inode, &iloc);
if (!err)
err = ext3_mark_iloc_dirty(handle, inode, &iloc);
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index f4090bd2f345..c7f43944f160 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -285,7 +285,7 @@ group_add_out:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&range, (struct fstrim_range *)arg,
+ if (copy_from_user(&range, (struct fstrim_range __user *)arg,
sizeof(range)))
return -EFAULT;
@@ -293,7 +293,7 @@ group_add_out:
if (ret < 0)
return ret;
- if (copy_to_user((struct fstrim_range *)arg, &range,
+ if (copy_to_user((struct fstrim_range __user *)arg, &range,
sizeof(range)))
return -EFAULT;
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 3b57230a17bb..5571708b6a58 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -36,6 +36,7 @@
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/bio.h>
+#include <trace/events/ext3.h>
#include "namei.h"
#include "xattr.h"
@@ -287,7 +288,7 @@ static struct stats dx_show_leaf(struct dx_hash_info *hinfo, struct ext3_dir_ent
while (len--) printk("%c", *name++);
ext3fs_dirhash(de->name, de->name_len, &h);
printk(":%x.%u ", h.hash,
- ((char *) de - base));
+ (unsigned) ((char *) de - base));
}
space += EXT3_DIR_REC_LEN(de->name_len);
names++;
@@ -1013,7 +1014,7 @@ static struct buffer_head * ext3_dx_find_entry(struct inode *dir,
*err = -ENOENT;
errout:
- dxtrace(printk("%s not found\n", name));
+ dxtrace(printk("%s not found\n", entry->name));
dx_release (frames);
return NULL;
}
@@ -2140,6 +2141,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
struct ext3_dir_entry_2 * de;
handle_t *handle;
+ trace_ext3_unlink_enter(dir, dentry);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
dquot_initialize(dir);
@@ -2185,6 +2187,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
end_unlink:
ext3_journal_stop(handle);
brelse (bh);
+ trace_ext3_unlink_exit(dentry, retval);
return retval;
}
@@ -2206,9 +2209,11 @@ static int ext3_symlink (struct inode * dir,
/*
* For non-fast symlinks, we just allocate inode and put it on
* orphan list in the first transaction => we need bitmap,
- * group descriptor, sb, inode block, quota blocks.
+ * group descriptor, sb, inode block, quota blocks, and
+ * possibly selinux xattr blocks.
*/
- credits = 4 + EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb);
+ credits = 4 + EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb) +
+ EXT3_XATTR_TRANS_BLOCKS;
} else {
/*
* Fast symlink. We have to add entry to directory
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index b57ea2f91269..7beb69ae0015 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -44,6 +44,9 @@
#include "acl.h"
#include "namei.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/ext3.h>
+
#ifdef CONFIG_EXT3_DEFAULTS_TO_ORDERED
#define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_ORDERED_DATA
#else
@@ -497,6 +500,14 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
+static int ext3_drop_inode(struct inode *inode)
+{
+ int drop = generic_drop_inode(inode);
+
+ trace_ext3_drop_inode(inode, drop);
+ return drop;
+}
+
static void ext3_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
@@ -788,6 +799,7 @@ static const struct super_operations ext3_sops = {
.destroy_inode = ext3_destroy_inode,
.write_inode = ext3_write_inode,
.dirty_inode = ext3_dirty_inode,
+ .drop_inode = ext3_drop_inode,
.evict_inode = ext3_evict_inode,
.put_super = ext3_put_super,
.sync_fs = ext3_sync_fs,
@@ -2509,6 +2521,7 @@ static int ext3_sync_fs(struct super_block *sb, int wait)
{
tid_t target;
+ trace_ext3_sync_fs(sb, wait);
if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
if (wait)
log_wait_commit(EXT3_SB(sb)->s_journal, target);
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 32e6cc23bd9a..d565759d82ee 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -803,8 +803,16 @@ inserted:
/* We need to allocate a new block */
ext3_fsblk_t goal = ext3_group_first_block_no(sb,
EXT3_I(inode)->i_block_group);
- ext3_fsblk_t block = ext3_new_block(handle, inode,
- goal, &error);
+ ext3_fsblk_t block;
+
+ /*
+ * Protect us agaist concurrent allocations to the
+ * same inode from ext3_..._writepage(). Reservation
+ * code does not expect racing allocations.
+ */
+ mutex_lock(&EXT3_I(inode)->truncate_mutex);
+ block = ext3_new_block(handle, inode, goal, &error);
+ mutex_unlock(&EXT3_I(inode)->truncate_mutex);
if (error)
goto cleanup;
ea_idebug(inode, "creating block %d", block);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 15:38:32 +0100