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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-04-29 08:43:23 -0400 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-05-09 16:21:40 -0400 |
| commit | 5efe7448a1426250b5747c10ad438517f44f1e51 (patch) | |
| tree | afe256df7b4de7af6d60304322efa36813f2016c /kernel/events/uprobes.c | |
| parent | 6c2ae0d5db57d772a11f2d7399da5e22f94767d6 (diff) | |
| download | lwn-5efe7448a1426250b5747c10ad438517f44f1e51.tar.gz lwn-5efe7448a1426250b5747c10ad438517f44f1e51.zip | |
fs: Introduce aops->read_folio
Change all the callers of ->readpage to call ->read_folio in preference,
if it exists. This is a transitional duplication, and will be removed
by the end of the series.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Diffstat (limited to 'kernel/events/uprobes.c')
| -rw-r--r-- | kernel/events/uprobes.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 6418083901d4..2c7815d20038 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -790,7 +790,7 @@ static int __copy_insn(struct address_space *mapping, struct file *filp, * and in page-cache. If ->readpage == NULL it must be shmem_mapping(), * see uprobe_register(). */ - if (mapping->a_ops->readpage) + if (mapping->a_ops->read_folio || mapping->a_ops->readpage) page = read_mapping_page(mapping, offset >> PAGE_SHIFT, filp); else page = shmem_read_mapping_page(mapping, offset >> PAGE_SHIFT); @@ -1143,7 +1143,9 @@ static int __uprobe_register(struct inode *inode, loff_t offset, return -EINVAL; /* copy_insn() uses read_mapping_page() or shmem_read_mapping_page() */ - if (!inode->i_mapping->a_ops->readpage && !shmem_mapping(inode->i_mapping)) + if (!inode->i_mapping->a_ops->read_folio && + !inode->i_mapping->a_ops->readpage && + !shmem_mapping(inode->i_mapping)) return -EIO; /* Racy, just to catch the obvious mistakes */ if (offset > i_size_read(inode)) |