projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 8984d137 AM |
1 | /* |
| 2 | * Interface between ext4 and JBD | |
| 3 | */ | |
| 4 | ||
| 3dcf5451 | 5 | #include "ext4_jbd2.h" |
| 8984d137 AM |
6 | |
| 7 | int __ext4_journal_get_undo_access(const char *where, handle_t *handle, | |
| 8 | struct buffer_head *bh) | |
| 9 | { | |
| 0390131b FM |
10 | int err = 0; |
| 11 | ||
| 12 | if (ext4_handle_valid(handle)) { | |
| 13 | err = jbd2_journal_get_undo_access(handle, bh); | |
| 14 | if (err) | |
| 15 | ext4_journal_abort_handle(where, __func__, bh, | |
| 16 | handle, err); | |
| 17 | } | |
| 8984d137 AM |
18 | return err; |
| 19 | } | |
| 20 | ||
| 21 | int __ext4_journal_get_write_access(const char *where, handle_t *handle, | |
| 22 | struct buffer_head *bh) | |
| 23 | { | |
| 0390131b FM |
24 | int err = 0; |
| 25 | ||
| 26 | if (ext4_handle_valid(handle)) { | |
| 27 | err = jbd2_journal_get_write_access(handle, bh); | |
| 28 | if (err) | |
| 29 | ext4_journal_abort_handle(where, __func__, bh, | |
| 30 | handle, err); | |
| 31 | } | |
| 8984d137 AM |
32 | return err; |
| 33 | } | |
| 34 | ||
| 35 | int __ext4_journal_forget(const char *where, handle_t *handle, | |
| 36 | struct buffer_head *bh) | |
| 37 | { | |
| 0390131b FM |
38 | int err = 0; |
| 39 | ||
| 40 | if (ext4_handle_valid(handle)) { | |
| 41 | err = jbd2_journal_forget(handle, bh); | |
| 42 | if (err) | |
| 43 | ext4_journal_abort_handle(where, __func__, bh, | |
| 44 | handle, err); | |
| 45 | } | |
| e6b5d301 | 46 | else |
| c7acb4c1 | 47 | bforget(bh); |
| 8984d137 AM |
48 | return err; |
| 49 | } | |
| 50 | ||
| 51 | int __ext4_journal_revoke(const char *where, handle_t *handle, | |
| 52 | ext4_fsblk_t blocknr, struct buffer_head *bh) | |
| 53 | { | |
| 0390131b FM |
54 | int err = 0; |
| 55 | ||
| 56 | if (ext4_handle_valid(handle)) { | |
| 57 | err = jbd2_journal_revoke(handle, blocknr, bh); | |
| 58 | if (err) | |
| 59 | ext4_journal_abort_handle(where, __func__, bh, | |
| 60 | handle, err); | |
| 61 | } | |
| e6b5d301 | 62 | else |
| c7acb4c1 | 63 | bforget(bh); |
| 8984d137 AM |
64 | return err; |
| 65 | } | |
| 66 | ||
| 67 | int __ext4_journal_get_create_access(const char *where, | |
| 68 | handle_t *handle, struct buffer_head *bh) | |
| 69 | { | |
| 0390131b FM |
70 | int err = 0; |
| 71 | ||
| 72 | if (ext4_handle_valid(handle)) { | |
| 73 | err = jbd2_journal_get_create_access(handle, bh); | |
| 74 | if (err) | |
| 75 | ext4_journal_abort_handle(where, __func__, bh, | |
| 76 | handle, err); | |
| 77 | } | |
| 8984d137 AM |
78 | return err; |
| 79 | } | |
| 80 | ||
| 0390131b FM |
81 | int __ext4_handle_dirty_metadata(const char *where, handle_t *handle, |
| 82 | struct inode *inode, struct buffer_head *bh) | |
| 8984d137 | 83 | { |
| 0390131b FM |
84 | int err = 0; |
| 85 | ||
| 86 | if (ext4_handle_valid(handle)) { | |
| 87 | err = jbd2_journal_dirty_metadata(handle, bh); | |
| 88 | if (err) | |
| 89 | ext4_journal_abort_handle(where, __func__, bh, | |
| 90 | handle, err); | |
| 91 | } else { | |
| fe188c0e TT |
92 | if (inode && bh) |
| 93 | mark_buffer_dirty_inode(bh, inode); | |
| 94 | else | |
| 95 | mark_buffer_dirty(bh); | |
| 0390131b FM |
96 | if (inode && inode_needs_sync(inode)) { |
| 97 | sync_dirty_buffer(bh); | |
| 98 | if (buffer_req(bh) && !buffer_uptodate(bh)) { | |
| 99 | ext4_error(inode->i_sb, __func__, | |
| 100 | "IO error syncing inode, " | |
| 101 | "inode=%lu, block=%llu", | |
| 102 | inode->i_ino, | |
| 103 | (unsigned long long) bh->b_blocknr); | |
| 104 | err = -EIO; | |
| 105 | } | |
| 106 | } | |
| 107 | } | |
| 8984d137 AM |
108 | return err; |
| 109 | } |