#include <linux/slab.h>
#include <linux/ratelimit.h>
#include <linux/aio.h>
+#include <linux/bitops.h>
#include "ext4_jbd2.h"
#include "xattr.h"
#include "truncate.h"
#include <trace/events/ext4.h>
+#include <linux/blkdev.h>
#define MPAGE_DA_EXTENT_TAIL 0x01
struct page *page;
pgoff_t index;
unsigned from, to;
+#if defined(FEATURE_STORAGE_PID_LOGGER)
+ extern unsigned char *page_logger;
+ struct page_pid_logger *tmp_logger;
+ unsigned long page_index;
+ extern spinlock_t g_locker;
+ unsigned long g_flags;
+#endif
trace_ext4_write_begin(inode, pos, len, flags);
/*
return ret;
}
*pagep = page;
+#if defined(FEATURE_STORAGE_PID_LOGGER)
+ if( page_logger && (*pagep)) {
+ //#if defined(CONFIG_FLATMEM)
+ //page_index = (unsigned long)((*pagep) - mem_map) ;
+ //#else
+ page_index = (unsigned long)(__page_to_pfn(*pagep))- PHYS_PFN_OFFSET;
+ //#endif
+ tmp_logger =((struct page_pid_logger *)page_logger) + page_index;
+ spin_lock_irqsave(&g_locker, g_flags);
+ if( page_index < num_physpages) {
+ if( tmp_logger->pid1 == 0XFFFF)
+ tmp_logger->pid1 = current->pid;
+ else if( tmp_logger->pid1 != current->pid)
+ tmp_logger->pid2 = current->pid;
+ }
+ spin_unlock_irqrestore(&g_locker, g_flags);
+ }
+#endif
return ret;
}
}
}
- if (ext4_has_inline_data(inode))
- copied = ext4_write_inline_data_end(inode, pos, len,
- copied, page);
- else
+ if (ext4_has_inline_data(inode)) {
+ ret = ext4_write_inline_data_end(inode, pos, len,
+ copied, page);
+ if (ret < 0)
+ goto errout;
+ copied = ret;
+ } else
copied = block_write_end(file, mapping, pos,
len, copied, page, fsdata);
*/
static int ext4_da_reserve_metadata(struct inode *inode, ext4_lblk_t lblock)
{
- int retries = 0;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
struct ext4_inode_info *ei = EXT4_I(inode);
unsigned int md_needed;
* in order to allocate nrblocks
* worse case is one extent per block
*/
-repeat:
spin_lock(&ei->i_block_reservation_lock);
/*
* ext4_calc_metadata_amount() has side effects, which we have
ei->i_da_metadata_calc_len = save_len;
ei->i_da_metadata_calc_last_lblock = save_last_lblock;
spin_unlock(&ei->i_block_reservation_lock);
- if (ext4_should_retry_alloc(inode->i_sb, &retries)) {
- cond_resched();
- goto repeat;
- }
return -ENOSPC;
}
ei->i_reserved_meta_blocks += md_needed;
*/
static int ext4_da_reserve_space(struct inode *inode, ext4_lblk_t lblock)
{
- int retries = 0;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
struct ext4_inode_info *ei = EXT4_I(inode);
unsigned int md_needed;
* in order to allocate nrblocks
* worse case is one extent per block
*/
-repeat:
spin_lock(&ei->i_block_reservation_lock);
/*
* ext4_calc_metadata_amount() has side effects, which we have
ei->i_da_metadata_calc_len = save_len;
ei->i_da_metadata_calc_last_lblock = save_last_lblock;
spin_unlock(&ei->i_block_reservation_lock);
- if (ext4_should_retry_alloc(inode->i_sb, &retries)) {
- cond_resched();
- goto repeat;
- }
dquot_release_reservation_block(inode, EXT4_C2B(sbi, 1));
return -ENOSPC;
}
int ext4_punch_hole(struct file *file, loff_t offset, loff_t length)
{
+#if 0
struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
ext4_lblk_t first_block, stop_block;
out_mutex:
mutex_unlock(&inode->i_mutex);
return ret;
+#else
+ /*
+ * Disabled as per b/28760453
+ */
+ return -EOPNOTSUPP;
+#endif
}
/*
trace_ext4_load_inode(inode);
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
+#ifdef FEATURE_STORAGE_META_LOG
+ if( bh && bh->b_bdev && bh->b_bdev->bd_disk)
+ set_metadata_rw_status(bh->b_bdev->bd_disk->first_minor, WAIT_READ_CNT);
+#endif
submit_bh(READ | REQ_META | REQ_PRIO, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
void ext4_set_inode_flags(struct inode *inode)
{
unsigned int flags = EXT4_I(inode)->i_flags;
+ unsigned int new_fl = 0;
- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
if (flags & EXT4_SYNC_FL)
- inode->i_flags |= S_SYNC;
+ new_fl |= S_SYNC;
if (flags & EXT4_APPEND_FL)
- inode->i_flags |= S_APPEND;
+ new_fl |= S_APPEND;
if (flags & EXT4_IMMUTABLE_FL)
- inode->i_flags |= S_IMMUTABLE;
+ new_fl |= S_IMMUTABLE;
if (flags & EXT4_NOATIME_FL)
- inode->i_flags |= S_NOATIME;
+ new_fl |= S_NOATIME;
if (flags & EXT4_DIRSYNC_FL)
- inode->i_flags |= S_DIRSYNC;
+ new_fl |= S_DIRSYNC;
+ set_mask_bits(&inode->i_flags,
+ S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC, new_fl);
}
/* Propagate flags from i_flags to EXT4_I(inode)->i_flags */
ext4_journal_stop(handle);
}
- if (attr->ia_valid & ATTR_SIZE) {
+ if (attr->ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
+ handle_t *handle;
+ loff_t oldsize = inode->i_size;
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
if (attr->ia_size > sbi->s_bitmap_maxbytes)
return -EFBIG;
}
- }
- if (S_ISREG(inode->i_mode) &&
- attr->ia_valid & ATTR_SIZE &&
- (attr->ia_size < inode->i_size)) {
- handle_t *handle;
+ if (IS_I_VERSION(inode) && attr->ia_size != inode->i_size)
+ inode_inc_iversion(inode);
- handle = ext4_journal_start(inode, EXT4_HT_INODE, 3);
- if (IS_ERR(handle)) {
- error = PTR_ERR(handle);
- goto err_out;
- }
- if (ext4_handle_valid(handle)) {
- error = ext4_orphan_add(handle, inode);
- orphan = 1;
- }
- EXT4_I(inode)->i_disksize = attr->ia_size;
- rc = ext4_mark_inode_dirty(handle, inode);
- if (!error)
- error = rc;
- ext4_journal_stop(handle);
-
- if (ext4_should_order_data(inode)) {
- error = ext4_begin_ordered_truncate(inode,
+ if (S_ISREG(inode->i_mode) &&
+ (attr->ia_size < inode->i_size)) {
+ if (ext4_should_order_data(inode)) {
+ error = ext4_begin_ordered_truncate(inode,
attr->ia_size);
- if (error) {
- /* Do as much error cleanup as possible */
- handle = ext4_journal_start(inode,
- EXT4_HT_INODE, 3);
- if (IS_ERR(handle)) {
- ext4_orphan_del(NULL, inode);
+ if (error)
goto err_out;
- }
- ext4_orphan_del(handle, inode);
- orphan = 0;
- ext4_journal_stop(handle);
+ }
+ handle = ext4_journal_start(inode, EXT4_HT_INODE, 3);
+ if (IS_ERR(handle)) {
+ error = PTR_ERR(handle);
+ goto err_out;
+ }
+ if (ext4_handle_valid(handle)) {
+ error = ext4_orphan_add(handle, inode);
+ orphan = 1;
+ }
+ EXT4_I(inode)->i_disksize = attr->ia_size;
+ rc = ext4_mark_inode_dirty(handle, inode);
+ if (!error)
+ error = rc;
+ ext4_journal_stop(handle);
+ if (error) {
+ ext4_orphan_del(NULL, inode);
goto err_out;
}
}
- }
-
- if (attr->ia_valid & ATTR_SIZE) {
- if (attr->ia_size != inode->i_size) {
- loff_t oldsize = inode->i_size;
- i_size_write(inode, attr->ia_size);
- /*
- * Blocks are going to be removed from the inode. Wait
- * for dio in flight. Temporarily disable
- * dioread_nolock to prevent livelock.
- */
- if (orphan) {
- if (!ext4_should_journal_data(inode)) {
- ext4_inode_block_unlocked_dio(inode);
- inode_dio_wait(inode);
- ext4_inode_resume_unlocked_dio(inode);
- } else
- ext4_wait_for_tail_page_commit(inode);
- }
- /*
- * Truncate pagecache after we've waited for commit
- * in data=journal mode to make pages freeable.
- */
- truncate_pagecache(inode, oldsize, inode->i_size);
+ i_size_write(inode, attr->ia_size);
+ /*
+ * Blocks are going to be removed from the inode. Wait
+ * for dio in flight. Temporarily disable
+ * dioread_nolock to prevent livelock.
+ */
+ if (orphan) {
+ if (!ext4_should_journal_data(inode)) {
+ ext4_inode_block_unlocked_dio(inode);
+ inode_dio_wait(inode);
+ ext4_inode_resume_unlocked_dio(inode);
+ } else
+ ext4_wait_for_tail_page_commit(inode);
}
- ext4_truncate(inode);
+ /*
+ * Truncate pagecache after we've waited for commit
+ * in data=journal mode to make pages freeable.
+ */
+ truncate_pagecache(inode, oldsize, inode->i_size);
}
+ /*
+ * We want to call ext4_truncate() even if attr->ia_size ==
+ * inode->i_size for cases like truncation of fallocated space
+ */
+ if (attr->ia_valid & ATTR_SIZE)
+ ext4_truncate(inode);
if (!rc) {
setattr_copy(inode, attr);
struct kstat *stat)
{
struct inode *inode;
- unsigned long delalloc_blocks;
+ unsigned long long delalloc_blocks;
inode = dentry->d_inode;
generic_fillattr(inode, stat);
delalloc_blocks = EXT4_C2B(EXT4_SB(inode->i_sb),
EXT4_I(inode)->i_reserved_data_blocks);
- stat->blocks += (delalloc_blocks << inode->i_sb->s_blocksize_bits)>>9;
+ stat->blocks += delalloc_blocks << (inode->i_sb->s_blocksize_bits-9);
return 0;
}
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff