diff options
Diffstat (limited to 'fs/ext4')
-rw-r--r-- | fs/ext4/Kconfig | 3 | ||||
-rw-r--r-- | fs/ext4/acl.h | 2 | ||||
-rw-r--r-- | fs/ext4/balloc.c | 4 | ||||
-rw-r--r-- | fs/ext4/block_validity.c | 6 | ||||
-rw-r--r-- | fs/ext4/dir.c | 9 | ||||
-rw-r--r-- | fs/ext4/ext4.h | 22 | ||||
-rw-r--r-- | fs/ext4/ext4_extents.h | 14 | ||||
-rw-r--r-- | fs/ext4/ext4_jbd2.h | 5 | ||||
-rw-r--r-- | fs/ext4/extents.c | 14 | ||||
-rw-r--r-- | fs/ext4/extents_status.h | 2 | ||||
-rw-r--r-- | fs/ext4/file.c | 10 | ||||
-rw-r--r-- | fs/ext4/fsmap.c | 15 | ||||
-rw-r--r-- | fs/ext4/fsmap.h | 15 | ||||
-rw-r--r-- | fs/ext4/hash.c | 6 | ||||
-rw-r--r-- | fs/ext4/ialloc.c | 4 | ||||
-rw-r--r-- | fs/ext4/inline.c | 17 | ||||
-rw-r--r-- | fs/ext4/inode.c | 29 | ||||
-rw-r--r-- | fs/ext4/ioctl.c | 3 | ||||
-rw-r--r-- | fs/ext4/mballoc.c | 28 | ||||
-rw-r--r-- | fs/ext4/mballoc.h | 2 | ||||
-rw-r--r-- | fs/ext4/migrate.c | 9 | ||||
-rw-r--r-- | fs/ext4/move_extent.c | 10 | ||||
-rw-r--r-- | fs/ext4/namei.c | 69 | ||||
-rw-r--r-- | fs/ext4/resize.c | 2 | ||||
-rw-r--r-- | fs/ext4/super.c | 28 | ||||
-rw-r--r-- | fs/ext4/symlink.c | 43 | ||||
-rw-r--r-- | fs/ext4/sysfs.c | 65 | ||||
-rw-r--r-- | fs/ext4/truncate.h | 2 | ||||
-rw-r--r-- | fs/ext4/xattr.c | 5 | ||||
-rw-r--r-- | fs/ext4/xattr.h | 2 |
30 files changed, 172 insertions, 273 deletions
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index 73b850f5659c..a453cc87082b 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -82,9 +82,6 @@ config EXT4_FS_POSIX_ACL POSIX Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. - To learn more about Access Control Lists, visit the POSIX ACLs for - Linux website <http://acl.bestbits.at/>. - If you don't know what Access Control Lists are, say N config EXT4_FS_SECURITY diff --git a/fs/ext4/acl.h b/fs/ext4/acl.h index a48fc5ae2701..9b63f5416a2f 100644 --- a/fs/ext4/acl.h +++ b/fs/ext4/acl.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +// SPDX-License-Identifier: GPL-2.0 /* File: fs/ext4/acl.h diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index a943e568292e..f9b3e0a83526 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -355,10 +355,10 @@ static ext4_fsblk_t ext4_valid_block_bitmap(struct super_block *sb, blk = ext4_inode_table(sb, desc); offset = blk - group_first_block; next_zero_bit = ext4_find_next_zero_bit(bh->b_data, - EXT4_B2C(sbi, offset + EXT4_SB(sb)->s_itb_per_group), + EXT4_B2C(sbi, offset + sbi->s_itb_per_group), EXT4_B2C(sbi, offset)); if (next_zero_bit < - EXT4_B2C(sbi, offset + EXT4_SB(sb)->s_itb_per_group)) + EXT4_B2C(sbi, offset + sbi->s_itb_per_group)) /* bad bitmap for inode tables */ return blk; return 0; diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c index bee888e0e2db..913061c0de1b 100644 --- a/fs/ext4/block_validity.c +++ b/fs/ext4/block_validity.c @@ -147,11 +147,11 @@ int ext4_setup_system_zone(struct super_block *sb) int ret; if (!test_opt(sb, BLOCK_VALIDITY)) { - if (EXT4_SB(sb)->system_blks.rb_node) + if (sbi->system_blks.rb_node) ext4_release_system_zone(sb); return 0; } - if (EXT4_SB(sb)->system_blks.rb_node) + if (sbi->system_blks.rb_node) return 0; for (i=0; i < ngroups; i++) { @@ -173,7 +173,7 @@ int ext4_setup_system_zone(struct super_block *sb) } if (test_opt(sb, DEBUG)) - debug_print_tree(EXT4_SB(sb)); + debug_print_tree(sbi); return 0; } diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index d5babc9f222b..afda0a0499ce 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -25,6 +25,7 @@ #include <linux/fs.h> #include <linux/buffer_head.h> #include <linux/slab.h> +#include <linux/iversion.h> #include "ext4.h" #include "xattr.h" @@ -208,7 +209,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx) * readdir(2), then we might be pointing to an invalid * dirent right now. Scan from the start of the block * to make sure. */ - if (file->f_version != inode->i_version) { + if (inode_cmp_iversion(inode, file->f_version)) { for (i = 0; i < sb->s_blocksize && i < offset; ) { de = (struct ext4_dir_entry_2 *) (bh->b_data + i); @@ -227,7 +228,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx) offset = i; ctx->pos = (ctx->pos & ~(sb->s_blocksize - 1)) | offset; - file->f_version = inode->i_version; + file->f_version = inode_query_iversion(inode); } while (ctx->pos < inode->i_size @@ -568,10 +569,10 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx) * cached entries. */ if ((!info->curr_node) || - (file->f_version != inode->i_version)) { + inode_cmp_iversion(inode, file->f_version)) { info->curr_node = NULL; free_rb_tree_fname(&info->root); - file->f_version = inode->i_version; + file->f_version = inode_query_iversion(inode); ret = ext4_htree_fill_tree(file, info->curr_hash, info->curr_minor_hash, &info->next_hash); diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 4e091eae38b1..3241475a1733 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +// SPDX-License-Identifier: GPL-2.0 /* * ext4.h * @@ -611,10 +611,10 @@ enum { /* * Flags used by ext4_free_blocks */ -#define EXT4_FREE_BLOCKS_METADATA 0x0001 -#define EXT4_FREE_BLOCKS_FORGET 0x0002 -#define EXT4_FREE_BLOCKS_VALIDATED 0x0004 -#define EXT4_FREE_BLOCKS_NO_QUOT_UPDATE 0x0008 +#define EXT4_FREE_BLOCKS_METADATA 0x0001 +#define EXT4_FREE_BLOCKS_FORGET 0x0002 +#define EXT4_FREE_BLOCKS_VALIDATED 0x0004 +#define EXT4_FREE_BLOCKS_NO_QUOT_UPDATE 0x0008 #define EXT4_FREE_BLOCKS_NOFREE_FIRST_CLUSTER 0x0010 #define EXT4_FREE_BLOCKS_NOFREE_LAST_CLUSTER 0x0020 @@ -1986,10 +1986,10 @@ static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize) /* Legal values for the dx_root hash_version field: */ -#define DX_HASH_LEGACY 0 -#define DX_HASH_HALF_MD4 1 -#define DX_HASH_TEA 2 -#define DX_HASH_LEGACY_UNSIGNED 3 +#define DX_HASH_LEGACY 0 +#define DX_HASH_HALF_MD4 1 +#define DX_HASH_TEA 2 +#define DX_HASH_LEGACY_UNSIGNED 3 #define DX_HASH_HALF_MD4_UNSIGNED 4 #define DX_HASH_TEA_UNSIGNED 5 @@ -2000,7 +2000,6 @@ static inline u32 ext4_chksum(struct ext4_sb_info *sbi, u32 crc, struct shash_desc shash; char ctx[4]; } desc; - int err; BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver)!=sizeof(desc.ctx)); @@ -2008,8 +2007,7 @@ static inline u32 ext4_chksum(struct ext4_sb_info *sbi, u32 crc, desc.shash.flags = 0; *(u32 *)desc.ctx = crc; - err = crypto_shash_update(&desc.shash, address, length); - BUG_ON(err); + BUG_ON(crypto_shash_update(&desc.shash, address, length)); return *(u32 *)desc.ctx; } diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h index 8ecf84b8f5a1..98fb0c119c68 100644 --- a/fs/ext4/ext4_extents.h +++ b/fs/ext4/ext4_extents.h @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2003-2006, Cluster File Systems, Inc, info@clusterfs.com * Written by Alex Tomas <alex@clusterfs.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111- */ #ifndef _EXT4_EXTENTS diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index 48143e32411c..15b6dd733780 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ext4_jbd2.h * @@ -5,10 +6,6 @@ * * Copyright 1998--1999 Red Hat corp --- All Rights Reserved * - * This file is part of the Linux kernel and is made available under - * the terms of the GNU General Public License, version 2, or at your - * option, any later version, incorporated herein by reference. - * * Ext4-specific journaling extensions. */ diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index c941251ac0c0..054416e9d827 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2003-2006, Cluster File Systems, Inc, info@clusterfs.com * Written by Alex Tomas <alex@clusterfs.com> @@ -5,19 +6,6 @@ * Architecture independence: * Copyright (c) 2005, Bull S.A. * Written by Pierre Peiffer <pierre.peiffer@bull.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111- */ /* diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h index ca90fc96f47e..8efdeb903d6b 100644 --- a/fs/ext4/extents_status.h +++ b/fs/ext4/extents_status.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +// SPDX-License-Identifier: GPL-2.0 /* * fs/ext4/extents_status.h * diff --git a/fs/ext4/file.c b/fs/ext4/file.c index a0ae27b1bc66..fb6f023622fe 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -280,7 +280,8 @@ out: static int ext4_dax_huge_fault(struct vm_fault *vmf, enum page_entry_size pe_size) { - int result; + int result, error = 0; + int retries = 0; handle_t *handle = NULL; struct inode *inode = file_inode(vmf->vma->vm_file); struct super_block *sb = inode->i_sb; @@ -304,6 +305,7 @@ static int ext4_dax_huge_fault(struct vm_fault *vmf, sb_start_pagefault(sb); file_update_time(vmf->vma->vm_file); down_read(&EXT4_I(inode)->i_mmap_sem); +retry: handle = ext4_journal_start_sb(sb, EXT4_HT_WRITE_PAGE, EXT4_DATA_TRANS_BLOCKS(sb)); if (IS_ERR(handle)) { @@ -314,9 +316,13 @@ static int ext4_dax_huge_fault(struct vm_fault *vmf, } else { down_read(&EXT4_I(inode)->i_mmap_sem); } - result = dax_iomap_fault(vmf, pe_size, &pfn, &ext4_iomap_ops); + result = dax_iomap_fault(vmf, pe_size, &pfn, &error, &ext4_iomap_ops); if (write) { ext4_journal_stop(handle); + + if ((result & VM_FAULT_ERROR) && error == -ENOSPC && + ext4_should_retry_alloc(sb, &retries)) + goto retry; /* Handling synchronous page fault? */ if (result & VM_FAULT_NEEDDSYNC) result = dax_finish_sync_fault(vmf, pe_size, pfn); diff --git a/fs/ext4/fsmap.c b/fs/ext4/fsmap.c index 7ec340898598..e871c4bf18e9 100644 --- a/fs/ext4/fsmap.c +++ b/fs/ext4/fsmap.c @@ -1,21 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2017 Oracle. All Rights Reserved. * * Author: Darrick J. Wong <darrick.wong@oracle.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "ext4.h" #include <linux/fsmap.h> diff --git a/fs/ext4/fsmap.h b/fs/ext4/fsmap.h index 9a2cd367cc66..68c8001fee85 100644 --- a/fs/ext4/fsmap.h +++ b/fs/ext4/fsmap.h @@ -1,21 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2017 Oracle. All Rights Reserved. * * Author: Darrick J. Wong <darrick.wong@oracle.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __EXT4_FSMAP_H__ #define __EXT4_FSMAP_H__ diff --git a/fs/ext4/hash.c b/fs/ext4/hash.c index 00c6dd29e621..e22dcfab308b 100644 --- a/fs/ext4/hash.c +++ b/fs/ext4/hash.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/fs/ext4/hash.c * * Copyright (C) 2002 by Theodore Ts'o - * - * This file is released under the GPL v2. - * - * This file may be redistributed under the terms of the GNU Public - * License. */ #include <linux/fs.h> diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index b32cf263750d..7830d28df331 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -303,7 +303,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode) /* Do this BEFORE marking the inode not in use or returning an error */ ext4_clear_inode(inode); - es = EXT4_SB(sb)->s_es; + es = sbi->s_es; if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) { ext4_error(sb, "reserved or nonexistent inode %lu", ino); goto error_return; @@ -1157,7 +1157,7 @@ got: ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */ ext4_set_inode_state(inode, EXT4_STATE_NEW); - ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize; + ei->i_extra_isize = sbi->s_want_extra_isize; ei->i_inline_off = 0; if (ext4_has_feature_inline_data(sb)) ext4_set_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA); diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index 1367553c43bb..7c4165b88505 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -1,19 +1,12 @@ +// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (c) 2012 Taobao. * Written by Tao Ma <boyu.mt@taobao.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2.1 of the GNU Lesser General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/iomap.h> #include <linux/fiemap.h> +#include <linux/iversion.h> #include "ext4_jbd2.h" #include "ext4.h" @@ -1042,7 +1035,7 @@ static int ext4_add_dirent_to_inline(handle_t *handle, */ dir->i_mtime = dir->i_ctime = current_time(dir); ext4_update_dx_flag(dir); - dir->i_version++; + inode_inc_iversion(dir); return 1; } @@ -1494,7 +1487,7 @@ int ext4_read_inline_dir(struct file *file, * dirent right now. Scan from the start of the inline * dir to make sure. */ - if (file->f_version != inode->i_version) { + if (inode_cmp_iversion(inode, file->f_version)) { for (i = 0; i < extra_size && i < offset;) { /* * "." is with offset 0 and @@ -1526,7 +1519,7 @@ int ext4_read_inline_dir(struct file *file, } offset = i; ctx->pos = offset; - file->f_version = inode->i_version; + file->f_version = inode_query_iversion(inode); } while (ctx->pos < extra_size) { diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 534a9130f625..c94780075b04 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -39,6 +39,7 @@ #include <linux/slab.h> #include <linux/bitops.h> #include <linux/iomap.h> +#include <linux/iversion.h> #include "ext4_jbd2.h" #include "xattr.h" @@ -3767,10 +3768,18 @@ static ssize_t ext4_direct_IO_write(struct kiocb *iocb, struct iov_iter *iter) /* Credits for sb + inode write */ handle = ext4_journal_start(inode, EXT4_HT_INODE, 2); if (IS_ERR(handle)) { - /* This is really bad luck. We've written the data - * but cannot extend i_size. Bail out and pretend - * the write failed... */ - ret = PTR_ERR(handle); + /* + * We wrote the data but cannot extend + * i_size. Bail out. In async io case, we do + * not return error here because we have + * already submmitted the corresponding + * bio. Returning error here makes the caller + * think that this IO is done and failed + * resulting in race with bio's completion + * handler. + */ + if (!ret) + ret = PTR_ERR(handle); if (inode->i_nlink) ext4_orphan_del(NULL, inode); @@ -4882,12 +4891,14 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) EXT4_EINODE_GET_XTIME(i_crtime, ei, raw_inode); if (likely(!test_opt2(inode->i_sb, HURD_COMPAT))) { - inode->i_version = le32_to_cpu(raw_inode->i_disk_version); + u64 ivers = le32_to_cpu(raw_inode->i_disk_version); + if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) { if (EXT4_FITS_IN_INODE(raw_inode, ei, i_version_hi)) - inode->i_version |= + ivers |= (__u64)(le32_to_cpu(raw_inode->i_version_hi)) << 32; } + inode_set_iversion_queried(inode, ivers); } ret = 0; @@ -5173,11 +5184,13 @@ static int ext4_do_update_inode(handle_t *handle, } if (likely(!test_opt2(inode->i_sb, HURD_COMPAT))) { - raw_inode->i_disk_version = cpu_to_le32(inode->i_version); + u64 ivers = inode_peek_iversion(inode); + + raw_inode->i_disk_version = cpu_to_le32(ivers); if (ei->i_extra_isize) { if (EXT4_FITS_IN_INODE(raw_inode, ei, i_version_hi)) raw_inode->i_version_hi = - cpu_to_le32(inode->i_version >> 32); + cpu_to_le32(ivers >> 32); raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize); } diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 1eec25014f62..7e99ad02f1ba 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -19,6 +19,7 @@ #include <linux/uuid.h> #include <linux/uaccess.h> #include <linux/delay.h> +#include <linux/iversion.h> #include "ext4_jbd2.h" #include "ext4.h" #include <linux/fsmap.h> @@ -144,7 +145,7 @@ static long swap_inode_boot_loader(struct super_block *sb, i_gid_write(inode_bl, 0); inode_bl->i_flags = 0; ei_bl->i_flags = 0; - inode_bl->i_version = 1; + inode_set_iversion(inode_bl, 1); i_size_write(inode_bl, 0); inode_bl->i_mode = S_IFREG; if (ext4_has_feature_extents(sb)) { diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index d9f8b90a93ed..769a62708b1c 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2003-2006, Cluster File Systems, Inc, info@clusterfs.com * Written by Alex Tomas <alex@clusterfs.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111- */ @@ -769,10 +757,10 @@ void ext4_mb_generate_buddy(struct super_block *sb, clear_bit(EXT4_GROUP_INFO_NEED_INIT_BIT, &(grp->bb_state)); period = get_cycles() - period; - spin_lock(&EXT4_SB(sb)->s_bal_lock); - EXT4_SB(sb)->s_mb_buddies_generated++; - EXT4_SB(sb)->s_mb_generation_time += period; - spin_unlock(&EXT4_SB(sb)->s_bal_lock); + spin_lock(&sbi->s_bal_lock); + sbi->s_mb_buddies_generated++; + sbi->s_mb_generation_time += period; + spin_unlock(&sbi->s_bal_lock); } static void mb_regenerate_buddy(struct ext4_buddy *e4b) @@ -1459,7 +1447,7 @@ static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b, ext4_fsblk_t blocknr; blocknr = ext4_group_first_block_no(sb, e4b->bd_group); - blocknr += EXT4_C2B(EXT4_SB(sb), block); + blocknr += EXT4_C2B(sbi, block); ext4_grp_locked_error(sb, e4b->bd_group, inode ? inode->i_ino : 0, blocknr, @@ -4850,9 +4838,9 @@ do_more: if (in_range(ext4_block_bitmap(sb, gdp), block, count) || in_range(ext4_inode_bitmap(sb, gdp), block, count) || in_range(block, ext4_inode_table(sb, gdp), - EXT4_SB(sb)->s_itb_per_group) || + sbi->s_itb_per_group) || in_range(block + count - 1, ext4_inode_table(sb, gdp), - EXT4_SB(sb)->s_itb_per_group)) { + sbi->s_itb_per_group)) { ext4_error(sb, "Freeing blocks in system zone - " "Block = %llu, count = %lu", block, count); diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h index dcf52540f379..88c98f17e3d9 100644 --- a/fs/ext4/mballoc.h +++ b/fs/ext4/mballoc.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +// SPDX-License-Identifier: GPL-2.0 /* * fs/ext4/mballoc.h * diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index cf5181b62df1..61a9d1927817 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -1,15 +1,8 @@ +// SPDX-License-Identifier: LGPL-2.1 /* * Copyright IBM Corporation, 2007 * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2.1 of the GNU Lesser General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * */ #include <linux/slab.h> diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c index 9bb36909ec92..b96e4bd3b3ec 100644 --- a/fs/ext4/move_extent.c +++ b/fs/ext4/move_extent.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (c) 2008,2009 NEC Software Tohoku, Ltd. * Written by Takashi Sato <t-sato@yk.jp.nec.com> * Akira Fujita <a-fujita@rs.jp.nec.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2.1 of the GNU Lesser General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/fs.h> diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index e750d68fbcb5..b1f21e3a0763 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -34,6 +34,7 @@ #include <linux/quotaops.h> #include <linux/buffer_head.h> #include <linux/bio.h> +#include <linux/iversion.h> #include "ext4.h" #include "ext4_jbd2.h" @@ -2959,7 +2960,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry) "empty directory '%.*s' has too many links (%u)", dentry->d_name.len, dentry->d_name.name, inode->i_nlink); - inode->i_version++; + inode_inc_iversion(inode); clear_nlink(inode); /* There's no need to set i_disksize: the fact that i_nlink is * zero will ensure that the right thing happens during any @@ -3056,39 +3057,19 @@ static int ext4_symlink(struct inode *dir, struct inode *inode; int err, len = strlen(symname); int credits; - bool encryption_required; struct fscrypt_str disk_link; - struct fscrypt_symlink_data *sd = NULL; if (unlikely(ext4_forced_shutdown(EXT4_SB(dir->i_sb)))) return -EIO; - disk_link.len = len + 1; - disk_link.name = (char *) symname; - - encryption_required = (ext4_encrypted_inode(dir) || - DUMMY_ENCRYPTION_ENABLED(EXT4_SB(dir->i_sb))); - if (encryption_required) { - err = fscrypt_get_encryption_info(dir); - if (err) - return err; - if (!fscrypt_has_encryption_key(dir)) - return -ENOKEY; - disk_link.len = (fscrypt_fname_encrypted_size(dir, len) + - sizeof(struct fscrypt_symlink_data)); - sd = kzalloc(disk_link.len, GFP_KERNEL); - if (!sd) - return -ENOMEM; - } - - if (disk_link.len > dir->i_sb->s_blocksize) { - err = -ENAMETOOLONG; - goto err_free_sd; - } + err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize, + &disk_link); + if (err) + return err; err = dquot_initialize(dir); if (err) - goto err_free_sd; + return err; if ((disk_link.len > EXT4_N_BLOCKS * 4)) { /* @@ -3117,27 +3098,18 @@ static int ext4_symlink(struct inode *dir, if (IS_ERR(inode)) { if (handle) ext4_journal_stop(handle); - err = PTR_ERR(inode); - goto err_free_sd; + return PTR_ERR(inode); } - if (encryption_required) { - struct qstr istr; - struct fscrypt_str ostr = - FSTR_INIT(sd->encrypted_path, disk_link.len); - - istr.name = (const unsigned char *) symname; - istr.len = len; - err = fscrypt_fname_usr_to_disk(inode, &istr, &ostr); + if (IS_ENCRYPTED(inode)) { + err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link); if (err) goto err_drop_inode; - sd->len = cpu_to_le16(ostr.len); - disk_link.name = (char *) sd; inode->i_op = &ext4_encrypted_symlink_inode_operations; } if ((disk_link.len > EXT4_N_BLOCKS * 4)) { - if (!encryption_required) + if (!IS_ENCRYPTED(inode)) inode->i_op = &ext4_symlink_inode_operations; inode_nohighmem(inode); ext4_set_aops(inode); @@ -3179,7 +3151,7 @@ static int ext4_symlink(struct inode *dir, } else { /* clear the extent format for fast symlink */ ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS); - if (!encryption_required) { + if (!IS_ENCRYPTED(inode)) { inode->i_op = &ext4_fast_symlink_inode_operations; inode->i_link = (char *)&EXT4_I(inode)->i_data; } @@ -3194,16 +3166,17 @@ static int ext4_symlink(struct inode *dir, if (handle) ext4_journal_stop(handle); - kfree(sd); - return err; + goto out_free_encrypted_link; + err_drop_inode: if (handle) ext4_journal_stop(handle); clear_nlink(inode); unlock_new_inode(inode); iput(inode); -err_free_sd: - kfree(sd); +out_free_encrypted_link: + if (disk_link.name != (unsigned char *)symname) + kfree(disk_link.name); return err; } @@ -3221,9 +3194,9 @@ static int ext4_link(struct dentry *old_dentry, if (err) return err; - if ((ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT)) && - (!projid_eq(EXT4_I(dir)->i_projid, - EXT4_I(old_dentry->d_inode)->i_projid))) + if ((ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT)) && + (!projid_eq(EXT4_I(dir)->i_projid, + EXT4_I(old_dentry->d_inode)->i_projid))) return -EXDEV; err = dquot_initialize(dir); @@ -3365,7 +3338,7 @@ static int ext4_setent(handle_t *handle, struct ext4_renament *ent, < |