compress.c (1d1df41c5a33359a00e919d54eaebfb789711fdc) compress.c (e4544b63a7ee49e7fbebf35ece0a6acd3b9617ae)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * f2fs compress support
4 *
5 * Copyright (c) 2019 Chao Yu <chao@kernel.org>
6 */
7
8#include <linux/fs.h>

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1262 }
1263
1264 if (IS_NOQUOTA(inode)) {
1265 /*
1266 * We need to wait for node_write to avoid block allocation during
1267 * checkpoint. This can only happen to quota writes which can cause
1268 * the below discard race condition.
1269 */
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * f2fs compress support
4 *
5 * Copyright (c) 2019 Chao Yu <chao@kernel.org>
6 */
7
8#include <linux/fs.h>

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1262 }
1263
1264 if (IS_NOQUOTA(inode)) {
1265 /*
1266 * We need to wait for node_write to avoid block allocation during
1267 * checkpoint. This can only happen to quota writes which can cause
1268 * the below discard race condition.
1269 */
1270 down_read(&sbi->node_write);
1270 f2fs_down_read(&sbi->node_write);
1271 } else if (!f2fs_trylock_op(sbi)) {
1272 goto out_free;
1273 }
1274
1275 set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
1276
1277 err = f2fs_get_dnode_of_data(&dn, start_idx, LOOKUP_NODE);
1278 if (err)

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1379 add_compr_block_stat(inode, cc->valid_nr_cpages);
1380
1381 set_inode_flag(cc->inode, FI_APPEND_WRITE);
1382 if (cc->cluster_idx == 0)
1383 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
1384
1385 f2fs_put_dnode(&dn);
1386 if (IS_NOQUOTA(inode))
1271 } else if (!f2fs_trylock_op(sbi)) {
1272 goto out_free;
1273 }
1274
1275 set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
1276
1277 err = f2fs_get_dnode_of_data(&dn, start_idx, LOOKUP_NODE);
1278 if (err)

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1379 add_compr_block_stat(inode, cc->valid_nr_cpages);
1380
1381 set_inode_flag(cc->inode, FI_APPEND_WRITE);
1382 if (cc->cluster_idx == 0)
1383 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
1384
1385 f2fs_put_dnode(&dn);
1386 if (IS_NOQUOTA(inode))
1387 up_read(&sbi->node_write);
1387 f2fs_up_read(&sbi->node_write);
1388 else
1389 f2fs_unlock_op(sbi);
1390
1391 spin_lock(&fi->i_size_lock);
1392 if (fi->last_disk_size < psize)
1393 fi->last_disk_size = psize;
1394 spin_unlock(&fi->i_size_lock);
1395

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1405 for (--i; i >= 0; i--)
1406 fscrypt_finalize_bounce_page(&cc->cpages[i]);
1407out_put_cic:
1408 kmem_cache_free(cic_entry_slab, cic);
1409out_put_dnode:
1410 f2fs_put_dnode(&dn);
1411out_unlock_op:
1412 if (IS_NOQUOTA(inode))
1388 else
1389 f2fs_unlock_op(sbi);
1390
1391 spin_lock(&fi->i_size_lock);
1392 if (fi->last_disk_size < psize)
1393 fi->last_disk_size = psize;
1394 spin_unlock(&fi->i_size_lock);
1395

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1405 for (--i; i >= 0; i--)
1406 fscrypt_finalize_bounce_page(&cc->cpages[i]);
1407out_put_cic:
1408 kmem_cache_free(cic_entry_slab, cic);
1409out_put_dnode:
1410 f2fs_put_dnode(&dn);
1411out_unlock_op:
1412 if (IS_NOQUOTA(inode))
1413 up_read(&sbi->node_write);
1413 f2fs_up_read(&sbi->node_write);
1414 else
1415 f2fs_unlock_op(sbi);
1416out_free:
1417 for (i = 0; i < cc->valid_nr_cpages; i++) {
1418 f2fs_compress_free_page(cc->cpages[i]);
1419 cc->cpages[i] = NULL;
1420 }
1421 page_array_free(cc->inode, cc->cpages, cc->nr_cpages);

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1415 f2fs_unlock_op(sbi);
1416out_free:
1417 for (i = 0; i < cc->valid_nr_cpages; i++) {
1418 f2fs_compress_free_page(cc->cpages[i]);
1419 cc->cpages[i] = NULL;
1420 }
1421 page_array_free(cc->inode, cc->cpages, cc->nr_cpages);

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