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-rw-r--r--fs/xfs/xfs_rw.c155
1 files changed, 0 insertions, 155 deletions
diff --git a/fs/xfs/xfs_rw.c b/fs/xfs/xfs_rw.c
index 5aa07caea5f1..e336742a58a4 100644
--- a/fs/xfs/xfs_rw.c
+++ b/fs/xfs/xfs_rw.c
@@ -47,48 +47,6 @@
47#include "xfs_trace.h" 47#include "xfs_trace.h"
48 48
49/* 49/*
50 * This is a subroutine for xfs_write() and other writers (xfs_ioctl)
51 * which clears the setuid and setgid bits when a file is written.
52 */
53int
54xfs_write_clear_setuid(
55 xfs_inode_t *ip)
56{
57 xfs_mount_t *mp;
58 xfs_trans_t *tp;
59 int error;
60
61 mp = ip->i_mount;
62 tp = xfs_trans_alloc(mp, XFS_TRANS_WRITEID);
63 if ((error = xfs_trans_reserve(tp, 0,
64 XFS_WRITEID_LOG_RES(mp),
65 0, 0, 0))) {
66 xfs_trans_cancel(tp, 0);
67 return error;
68 }
69 xfs_ilock(ip, XFS_ILOCK_EXCL);
70 xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
71 xfs_trans_ihold(tp, ip);
72 ip->i_d.di_mode &= ~S_ISUID;
73
74 /*
75 * Note that we don't have to worry about mandatory
76 * file locking being disabled here because we only
77 * clear the S_ISGID bit if the Group execute bit is
78 * on, but if it was on then mandatory locking wouldn't
79 * have been enabled.
80 */
81 if (ip->i_d.di_mode & S_IXGRP) {
82 ip->i_d.di_mode &= ~S_ISGID;
83 }
84 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
85 xfs_trans_set_sync(tp);
86 error = xfs_trans_commit(tp, 0);
87 xfs_iunlock(ip, XFS_ILOCK_EXCL);
88 return 0;
89}
90
91/*
92 * Force a shutdown of the filesystem instantly while keeping 50 * Force a shutdown of the filesystem instantly while keeping
93 * the filesystem consistent. We don't do an unmount here; just shutdown 51 * the filesystem consistent. We don't do an unmount here; just shutdown
94 * the shop, make sure that absolutely nothing persistent happens to 52 * the shop, make sure that absolutely nothing persistent happens to
@@ -153,88 +111,6 @@ xfs_do_force_shutdown(
153 } 111 }
154} 112}
155 113
156
157/*
158 * Called when we want to stop a buffer from getting written or read.
159 * We attach the EIO error, muck with its flags, and call biodone
160 * so that the proper iodone callbacks get called.
161 */
162int
163xfs_bioerror(
164 xfs_buf_t *bp)
165{
166
167#ifdef XFSERRORDEBUG
168 ASSERT(XFS_BUF_ISREAD(bp) || bp->b_iodone);
169#endif
170
171 /*
172 * No need to wait until the buffer is unpinned.
173 * We aren't flushing it.
174 */
175 XFS_BUF_ERROR(bp, EIO);
176 /*
177 * We're calling biodone, so delete B_DONE flag. Either way
178 * we have to call the iodone callback, and calling biodone
179 * probably is the best way since it takes care of
180 * GRIO as well.
181 */
182 XFS_BUF_UNREAD(bp);
183 XFS_BUF_UNDELAYWRITE(bp);
184 XFS_BUF_UNDONE(bp);
185 XFS_BUF_STALE(bp);
186
187 XFS_BUF_CLR_BDSTRAT_FUNC(bp);
188 xfs_biodone(bp);
189
190 return (EIO);
191}
192
193/*
194 * Same as xfs_bioerror, except that we are releasing the buffer
195 * here ourselves, and avoiding the biodone call.
196 * This is meant for userdata errors; metadata bufs come with
197 * iodone functions attached, so that we can track down errors.
198 */
199int
200xfs_bioerror_relse(
201 xfs_buf_t *bp)
202{
203 int64_t fl;
204
205 ASSERT(XFS_BUF_IODONE_FUNC(bp) != xfs_buf_iodone_callbacks);
206 ASSERT(XFS_BUF_IODONE_FUNC(bp) != xlog_iodone);
207
208 fl = XFS_BUF_BFLAGS(bp);
209 /*
210 * No need to wait until the buffer is unpinned.
211 * We aren't flushing it.
212 *
213 * chunkhold expects B_DONE to be set, whether
214 * we actually finish the I/O or not. We don't want to
215 * change that interface.
216 */
217 XFS_BUF_UNREAD(bp);
218 XFS_BUF_UNDELAYWRITE(bp);
219 XFS_BUF_DONE(bp);
220 XFS_BUF_STALE(bp);
221 XFS_BUF_CLR_IODONE_FUNC(bp);
222 XFS_BUF_CLR_BDSTRAT_FUNC(bp);
223 if (!(fl & XFS_B_ASYNC)) {
224 /*
225 * Mark b_error and B_ERROR _both_.
226 * Lot's of chunkcache code assumes that.
227 * There's no reason to mark error for
228 * ASYNC buffers.
229 */
230 XFS_BUF_ERROR(bp, EIO);
231 XFS_BUF_FINISH_IOWAIT(bp);
232 } else {
233 xfs_buf_relse(bp);
234 }
235 return (EIO);
236}
237
238/* 114/*
239 * Prints out an ALERT message about I/O error. 115 * Prints out an ALERT message about I/O error.
240 */ 116 */
@@ -306,37 +182,6 @@ xfs_read_buf(
306} 182}
307 183
308/* 184/*
309 * Wrapper around bwrite() so that we can trap
310 * write errors, and act accordingly.
311 */
312int
313xfs_bwrite(
314 struct xfs_mount *mp,
315 struct xfs_buf *bp)
316{
317 int error;
318
319 /*
320 * XXXsup how does this work for quotas.
321 */
322 XFS_BUF_SET_BDSTRAT_FUNC(bp, xfs_bdstrat_cb);
323 bp->b_mount = mp;
324 XFS_BUF_WRITE(bp);
325
326 if ((error = XFS_bwrite(bp))) {
327 ASSERT(mp);
328 /*
329 * Cannot put a buftrace here since if the buffer is not
330 * B_HOLD then we will brelse() the buffer before returning
331 * from bwrite and we could be tracing a buffer that has
332 * been reused.
333 */
334 xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
335 }
336 return (error);
337}
338
339/*
340 * helper function to extract extent size hint from inode 185 * helper function to extract extent size hint from inode
341 */ 186 */
342xfs_extlen_t 187xfs_extlen_t