projects / linux-block.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 | } | |
| 8984d137 AM |
46 | return err; |
| 47 | } | |
| 48 | ||
| 49 | int __ext4_journal_revoke(const char *where, handle_t *handle, | |
| 50 | ext4_fsblk_t blocknr, struct buffer_head *bh) | |
| 51 | { | |
| 0390131b FM |
52 | int err = 0; |
| 53 | ||
| 54 | if (ext4_handle_valid(handle)) { | |
| 55 | err = jbd2_journal_revoke(handle, blocknr, bh); | |
| 56 | if (err) | |
| 57 | ext4_journal_abort_handle(where, __func__, bh, | |
| 58 | handle, err); | |
| 59 | } | |
| 8984d137 AM |
60 | return err; |
| 61 | } | |
| 62 | ||
| 63 | int __ext4_journal_get_create_access(const char *where, | |
| 64 | handle_t *handle, struct buffer_head *bh) | |
| 65 | { | |
| 0390131b FM |
66 | int err = 0; |
| 67 | ||
| 68 | if (ext4_handle_valid(handle)) { | |
| 69 | err = jbd2_journal_get_create_access(handle, bh); | |
| 70 | if (err) | |
| 71 | ext4_journal_abort_handle(where, __func__, bh, | |
| 72 | handle, err); | |
| 73 | } | |
| 8984d137 AM |
74 | return err; |
| 75 | } | |
| 76 | ||
| 0390131b FM |
77 | int __ext4_handle_dirty_metadata(const char *where, handle_t *handle, |
| 78 | struct inode *inode, struct buffer_head *bh) | |
| 8984d137 | 79 | { |
| 0390131b FM |
80 | int err = 0; |
| 81 | ||
| 82 | if (ext4_handle_valid(handle)) { | |
| 83 | err = jbd2_journal_dirty_metadata(handle, bh); | |
| 84 | if (err) | |
| 85 | ext4_journal_abort_handle(where, __func__, bh, | |
| 86 | handle, err); | |
| 87 | } else { | |
| 88 | mark_buffer_dirty(bh); | |
| 89 | if (inode && inode_needs_sync(inode)) { | |
| 90 | sync_dirty_buffer(bh); | |
| 91 | if (buffer_req(bh) && !buffer_uptodate(bh)) { | |
| 92 | ext4_error(inode->i_sb, __func__, | |
| 93 | "IO error syncing inode, " | |
| 94 | "inode=%lu, block=%llu", | |
| 95 | inode->i_ino, | |
| 96 | (unsigned long long) bh->b_blocknr); | |
| 97 | err = -EIO; | |
| 98 | } | |
| 99 | } | |
| 100 | } | |
| 8984d137 AM |
101 | return err; |
| 102 | } |