Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include "reiserfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include "acl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include "xattr.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/pagemap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/swap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/writeback.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/buffer_head.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/quotaops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  * We pack the tails of files on file close, not at the time they are written.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  * This implies an unnecessary copy of the tail and an unnecessary indirect item
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  * insertion/balancing, for files that are written in one write.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  * It avoids unnecessary tail packings (balances) for files that are written in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  * multiple writes and are small enough to have tails.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  * file_release is called by the VFS layer when the file is closed.  If
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * this is the last open file descriptor, and the file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  * small enough to have a tail, and the tail is currently in an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  * unformatted node, the tail is converted back into a direct item.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  * We use reiserfs_truncate_file to pack the tail, since it already has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  * all the conditions coded.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) static int reiserfs_file_release(struct inode *inode, struct file *filp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	int jbegin_failure = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	BUG_ON(!S_ISREG(inode->i_mode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	if (!atomic_dec_and_mutex_lock(&REISERFS_I(inode)->openers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 				       &REISERFS_I(inode)->tailpack))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	/* fast out for when nothing needs to be done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	if ((!(REISERFS_I(inode)->i_flags & i_pack_on_close_mask) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	     !tail_has_to_be_packed(inode)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	    REISERFS_I(inode)->i_prealloc_count <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		mutex_unlock(&REISERFS_I(inode)->tailpack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	reiserfs_write_lock(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	 * freeing preallocation only involves relogging blocks that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	 * are already in the current transaction.  preallocation gets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	 * freed at the end of each transaction, so it is impossible for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	 * us to log any additional blocks (including quota blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	err = journal_begin(&th, inode->i_sb, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		 * uh oh, we can't allow the inode to go away while there
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		 * is still preallocation blocks pending.  Try to join the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		 * aborted transaction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		jbegin_failure = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		err = journal_join_abort(&th, inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 			 * hmpf, our choices here aren't good.  We can pin
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 			 * the inode which will disallow unmount from ever
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 			 * happening, we can do nothing, which will corrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 			 * random memory on unmount, or we can forcibly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			 * remove the file from the preallocation list, which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			 * will leak blocks on disk.  Lets pin the inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 			 * and let the admin know what is going on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 			igrab(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 			reiserfs_warning(inode->i_sb, "clm-9001",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 					 "pinning inode %lu because the "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 					 "preallocation can't be freed",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 					 inode->i_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	reiserfs_update_inode_transaction(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) #ifdef REISERFS_PREALLOCATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	reiserfs_discard_prealloc(&th, inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	err = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	/* copy back the error code from journal_begin */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	if (!err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		err = jbegin_failure;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	if (!err &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	    (REISERFS_I(inode)->i_flags & i_pack_on_close_mask) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	    tail_has_to_be_packed(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		 * if regular file is released by last holder and it has been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		 * appended (we append by unformatted node only) or its direct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		 * item(s) had to be converted, then it may have to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		 * indirect2direct converted
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		err = reiserfs_truncate_file(inode, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	reiserfs_write_unlock(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	mutex_unlock(&REISERFS_I(inode)->tailpack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static int reiserfs_file_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	int err = dquot_file_open(inode, file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	/* somebody might be tailpacking on final close; wait for it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)         if (!atomic_inc_not_zero(&REISERFS_I(inode)->openers)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		mutex_lock(&REISERFS_I(inode)->tailpack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		atomic_inc(&REISERFS_I(inode)->openers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		mutex_unlock(&REISERFS_I(inode)->tailpack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) void reiserfs_vfs_truncate_file(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	mutex_lock(&REISERFS_I(inode)->tailpack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	reiserfs_truncate_file(inode, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	mutex_unlock(&REISERFS_I(inode)->tailpack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /* Sync a reiserfs file. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)  * FIXME: sync_mapping_buffers() never has anything to sync.  Can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)  * be removed...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static int reiserfs_sync_file(struct file *filp, loff_t start, loff_t end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			      int datasync)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct inode *inode = filp->f_mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	int barrier_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	err = file_write_and_wait_range(filp, start, end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	inode_lock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	BUG_ON(!S_ISREG(inode->i_mode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	err = sync_mapping_buffers(inode->i_mapping);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	reiserfs_write_lock(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	barrier_done = reiserfs_commit_for_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	reiserfs_write_unlock(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	if (barrier_done != 1 && reiserfs_barrier_flush(inode->i_sb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	inode_unlock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	if (barrier_done < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		return barrier_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	return (err < 0) ? -EIO : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) /* taken fs/buffer.c:__block_commit_write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) int reiserfs_commit_page(struct inode *inode, struct page *page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 			 unsigned from, unsigned to)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	unsigned block_start, block_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	int partial = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	unsigned blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	struct buffer_head *bh, *head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	unsigned long i_size_index = inode->i_size >> PAGE_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	int new;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	int logit = reiserfs_file_data_log(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	struct super_block *s = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	int bh_per_page = PAGE_SIZE / s->s_blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	th.t_trans_id = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	blocksize = i_blocksize(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	if (logit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		ret = journal_begin(&th, s, bh_per_page + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 			goto drop_write_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		reiserfs_update_inode_transaction(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	for (bh = head = page_buffers(page), block_start = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	     bh != head || !block_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	     block_start = block_end, bh = bh->b_this_page) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		new = buffer_new(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		clear_buffer_new(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		block_end = block_start + blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		if (block_end <= from || block_start >= to) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			if (!buffer_uptodate(bh))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 				partial = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			set_buffer_uptodate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 			if (logit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 				reiserfs_prepare_for_journal(s, bh, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 				journal_mark_dirty(&th, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			} else if (!buffer_dirty(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 				mark_buffer_dirty(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 				/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 				 * do data=ordered on any page past the end
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 				 * of file and any buffer marked BH_New.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 				 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 				if (reiserfs_data_ordered(inode->i_sb) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 				    (new || page->index >= i_size_index)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 					reiserfs_add_ordered_list(inode, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	if (logit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		ret = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) drop_write_lock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	 * If this is a partial write which happened to make all buffers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	 * uptodate then we can optimize away a bogus readpage() for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	 * the next read(). Here we 'discover' whether the page went
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	 * uptodate as a result of this (potentially partial) write.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	if (!partial)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		SetPageUptodate(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) const struct file_operations reiserfs_file_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	.unlocked_ioctl = reiserfs_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	.compat_ioctl = reiserfs_compat_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	.mmap = generic_file_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	.open = reiserfs_file_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	.release = reiserfs_file_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	.fsync = reiserfs_sync_file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	.read_iter = generic_file_read_iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	.write_iter = generic_file_write_iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	.splice_read = generic_file_splice_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	.splice_write = iter_file_splice_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	.llseek = generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) const struct inode_operations reiserfs_file_inode_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	.setattr = reiserfs_setattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	.listxattr = reiserfs_listxattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	.permission = reiserfs_permission,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	.get_acl = reiserfs_get_acl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	.set_acl = reiserfs_set_acl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) };